{"as_of":"2026-08-09T09:04:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:1063b6e707d468bfc3c3408ebb62a02fa1bbc350266c081077391c9b18821d0c","coverage":[{"denominator":110,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":100,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-08T12:54:38.299220Z","state":"measured"},{"denominator":100,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":100,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-09T06:31:02.800959+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/2608.05453/citation-record","integrity":"/paper/2608.05453/integrity","json":"/paper/2608.05453/citation-record.json","paper":"/paper/2608.05453"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.820210Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":1,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.820210Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:580cea78c60c1674b60d333e16ba2f7521fb61d4667db7dcd5b31cdc0f1079c9","observation_id":"8335ba63-b67e-494a-bcde-a4501527ecc9","resolution":{"observed_at":"2026-08-08T12:54:37.820210Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0304279","last_updated":"2003-04-15T11:40:15Z","snapshot_observed_at":"2026-08-09T04:18:00.164996Z","submitted_at":"2003-04-15T11:40:15Z","title":"Uncovering the Beast: Discovery of Embedded Massive Stellar Clusters in W49A","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0304279","snapshot_observed_at":"2026-08-08T12:54:37.826014Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":2,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.826014Z"},"links":{"cited_paper":"/paper/astro-ph/0304279","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:a52bf39ae3ab643218047872e42d19e1c2849c96bc973dcbbe8f01a6fd7a4529","observation_id":"8a733b8f-1158-47b3-851f-d952c92bec49","resolution":{"observed_at":"2026-08-08T12:54:37.826014Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.831191Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":3,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.831191Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:8dc203195d8f3830ade27ddb9326a595e2c387707ca59658d0d1fefa4b14c050","observation_id":"9c7675a2-cddb-4630-a857-6ca9d2598bc3","resolution":{"observed_at":"2026-08-08T12:54:37.831191Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2401.09203","last_updated":"2024-01-17T13:28:47Z","snapshot_observed_at":"2026-07-06T17:16:47.315706Z","submitted_at":"2024-01-17T13:28:47Z","title":"ALMA-IMF X -- The core population in the evolved W33-Main (G012.80) protocluster","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2401.09203","snapshot_observed_at":"2026-08-08T12:54:37.836321Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":4,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.836321Z"},"links":{"cited_paper":"/paper/2401.09203","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:a5ff7a70d4b1689a391f07eafdfb02f19b58cdfc19c9946a43fd7899bcd619b6","observation_id":"c762e345-558f-4212-bb78-65d14265a7b2","resolution":{"observed_at":"2026-08-08T12:54:37.836321Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.842838Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":5,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.842838Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:bdde004fc326f7b75f73433a22d2a54de87e11d4eb19cd5664557cf50d80af0f","observation_id":"95de535f-9009-43db-a5e5-92baaf868501","resolution":{"observed_at":"2026-08-08T12:54:37.842838Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2009.03901","last_updated":"2020-09-08T18:00:01Z","snapshot_observed_at":"2026-07-06T09:53:55.894497Z","submitted_at":"2020-09-08T18:00:01Z","title":"Which feedback mechanisms dominate in the high-pressure environment of the Central Molecular Zone?","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2009.03901","snapshot_observed_at":"2026-08-08T12:54:37.847537Z","title":", keywords =","venue":null,"work_id":null,"year":2009},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":6,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.847537Z"},"links":{"cited_paper":"/paper/2009.03901","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:08589b6978bda34a82a9901e1083c5d8b38aaacf8785397b5242360f6d37890d","observation_id":"10f751a5-e630-4a8e-8bbf-a0e67fc4b697","resolution":{"observed_at":"2026-08-08T12:54:37.847537Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2007.11005","last_updated":"2020-09-03T11:40:53Z","snapshot_observed_at":"2026-08-09T09:03:55.432190Z","submitted_at":"2020-07-21T18:00:03Z","title":"LEGO II: A 3 mm molecular line study covering 100 pc of one of the most actively star-forming portions within the Milky Way Disc","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2007.11005","snapshot_observed_at":"2026-08-08T12:54:37.852465Z","title":"A 3 mm molecular line study covering 100 pc of one of the most actively star-forming portions within the Milky Way disc","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":7,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.852465Z"},"links":{"cited_paper":"/paper/2007.11005","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:a07c46233fe49fe559307a84c0e0b9e874182bf2398ae8485172876bd378e743","observation_id":"7a2da900-d920-49f4-b5ff-be732e99220c","resolution":{"observed_at":"2026-08-08T12:54:37.852465Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1001.2965","last_updated":"2010-01-25T15:58:50Z","snapshot_observed_at":"2026-07-06T02:06:40.729266Z","submitted_at":"2010-01-18T07:23:13Z","title":"A Universal Stellar Initial Mass Function? A Critical Look at Variations","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1001.2965","snapshot_observed_at":"2026-08-08T12:54:37.857688Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":8,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.857688Z"},"links":{"cited_paper":"/paper/1001.2965","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:1eccb2f28eca161bc07416fbb04f9ceeb6f3a11d359e40e4c87eb2706b053099","observation_id":"fff74de6-9658-4450-a8d9-f43bfac92d80","resolution":{"observed_at":"2026-08-08T12:54:37.857688Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.862971Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":9,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.862971Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:711a6b01c952842324802a63253c9aacfc950f9af3422eea0408fdf67f9582b0","observation_id":"6b11ee8d-c8f3-43e5-8a18-91c2741680f0","resolution":{"observed_at":"2026-08-08T12:54:37.862971Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1808.00454","last_updated":"2018-09-19T17:17:10Z","snapshot_observed_at":"2026-07-06T06:53:33.788675Z","submitted_at":"2018-07-31T21:54:54Z","title":"A Multiwavelength Look at Galactic Massive Star Forming Regions","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1808.00454","snapshot_observed_at":"2026-08-08T12:54:37.867488Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":10,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.867488Z"},"links":{"cited_paper":"/paper/1808.00454","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:74a06ca84bca60d43f446b151b430425bc6d4268b9a1436b45a756e47ef126f2","observation_id":"6bd0ce70-e063-4dbb-8bc7-19bb9e38efec","resolution":{"observed_at":"2026-08-08T12:54:37.867488Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.872332Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":11,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.872332Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:2669e7be383ebbcab8c7b91bece21e31bac4274f4ba82b596106889095159b8b","observation_id":"0c9f5c5c-7dc3-4565-892e-3c1e907a3925","resolution":{"observed_at":"2026-08-08T12:54:37.872332Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.876678Z","title":", keywords =","venue":null,"work_id":null,"year":2003},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":12,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.876678Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:f74f3d313a90eeaea83246b70935f1cd6c5a083c41c55a7de81eec0d127ee1b5","observation_id":"62d8bab1-aee7-43d6-b4eb-db630aeb6cfe","resolution":{"observed_at":"2026-08-08T12:54:37.876678Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2210.02276","last_updated":"2022-10-05T14:00:01Z","snapshot_observed_at":"2026-08-01T15:03:23.556846Z","submitted_at":"2022-10-05T14:00:01Z","title":"CASA, the Common Astronomy Software Applications for Radio Astronomy","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2210.02276","snapshot_observed_at":"2026-08-08T12:54:37.881326Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":13,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.881326Z"},"links":{"cited_paper":"/paper/2210.02276","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:abb902a38aba433405612aa492a55a3c31761f030ad776b6d40993394779a435","observation_id":"338b3b44-69d0-4f64-8e2d-19cd1445a0f3","resolution":{"observed_at":"2026-08-08T12:54:37.881326Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1506.01681","last_updated":"2015-08-11T20:44:40Z","snapshot_observed_at":"2026-07-06T04:19:56.872165Z","submitted_at":"2015-06-04T19:01:40Z","title":"PARSEC evolutionary tracks of massive stars up to $350 M_\\odot$ at metallicities 0.0001$\\leq Z \\leq$0.04","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1506.01681","snapshot_observed_at":"2026-08-08T12:54:37.886042Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":14,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.886042Z"},"links":{"cited_paper":"/paper/1506.01681","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:184fae417946f55b1f0296492831f8581aaf7620d759eb499da1b726c4c92843","observation_id":"82df860f-4136-47fa-a5ac-fadc58ab1fd7","resolution":{"observed_at":"2026-08-08T12:54:37.886042Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2404.03858","last_updated":"2024-04-05T01:40:58Z","snapshot_observed_at":"2026-07-06T17:55:57.562339Z","submitted_at":"2024-04-05T01:40:58Z","title":"INvestigations of massive Filaments ANd sTar formation (INFANT). I. Core Identification and Core Mass Function","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2404.03858","snapshot_observed_at":"2026-08-08T12:54:37.890470Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":15,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.890470Z"},"links":{"cited_paper":"/paper/2404.03858","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:d515e76817724bf22b5be7ad0b6e58b49a79d18ca512e290887f1c75847c65d2","observation_id":"bac15aeb-2cd0-4a94-a218-2cc5ef98c691","resolution":{"observed_at":"2026-08-08T12:54:37.890470Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.894944Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":16,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.894944Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:b4d865d233ff1cbd26a28e080868db45a5b205d76784f39f07732803d9a48d17","observation_id":"de3fd71a-1cc5-4887-ac62-c49feeb0db92","resolution":{"observed_at":"2026-08-08T12:54:37.894944Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.899152Z","title":"SIAM Review , keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":17,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.899152Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:4ea71864f4bcd433e9a1cf1d8bfb7518ba26b78679e4f08aacb2361657954d65","observation_id":"2e5bfc06-c58f-4013-a404-004fe11071ad","resolution":{"observed_at":"2026-08-08T12:54:37.899152Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2503.05663","last_updated":"2025-03-07T18:24:03Z","snapshot_observed_at":"2026-08-07T17:21:26.059395Z","submitted_at":"2025-03-07T18:24:03Z","title":"ALMAGAL III. Compact source catalog: Fragmentation statistics and physical evolution of the core population","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2503.05663","snapshot_observed_at":"2026-08-08T12:54:37.903544Z","title":"Compact source catalog: Fragmentation statistics and physical evolution of the core population","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":18,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.903544Z"},"links":{"cited_paper":"/paper/2503.05663","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:4fd16c3e48ac847bcf1e377dc4462c2f135aee8d21c29e5863f6d379a822392c","observation_id":"30ae335e-cbb3-4b0f-9486-b8dac7b799a7","resolution":{"observed_at":"2026-08-08T12:54:37.903544Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.908100Z","title":"Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE , year = 2006, editor =","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":19,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.908100Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:8cac026bb165b54c8334e4e3ce0433747049dc6e9d8dc91f94e67359f08aa35f","observation_id":"1dd5d746-c3ef-4b4f-8e6a-f03b268dd7e6","resolution":{"observed_at":"2026-08-08T12:54:37.908100Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1086/304119","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.614625Z","title":", keywords =","venue":null,"work_id":"6d478959-9372-4eac-86bd-cbdd2dcbb098","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":20,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.912620Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:225e9bcc614aa5e2df28c0bb19e9722b082ee422a2ee954fc1a4b9fc66bbef0f","observation_id":"9059ac84-219c-47bb-a258-956f516f2ffe","resolution":{"observed_at":"2026-08-08T12:54:38.619205Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1086/309315","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.599265Z","title":", keywords =","venue":null,"work_id":"e4b29798-31ac-4692-a00c-d4b5c44a0377","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":21,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.917571Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:5d1aa3ae162399ae641a2e680d1f3d54fefe0700ac54722f2f20361953e58ab1","observation_id":"093a213c-7d98-4baa-82e4-4b4de4155013","resolution":{"observed_at":"2026-08-08T12:54:38.604061Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.3847/2041-8213/aad631","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.584644Z","title":", keywords =","venue":null,"work_id":"d38c16e5-3c12-4001-aada-5d74c50a4142","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":22,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.922310Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:a5c11151fb50cc4f4c345b276c3da5d550a5737e07b6ed5cf16281b88ce5a7db","observation_id":"7377a790-250d-4e21-9251-b60173e4c622","resolution":{"observed_at":"2026-08-08T12:54:38.589306Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2010.04656","last_updated":"2020-10-09T15:57:34Z","snapshot_observed_at":"2026-07-06T10:03:00.402782Z","submitted_at":"2020-10-09T15:57:34Z","title":"Time-Variable Radio Recombination Line Emission in W49A","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2010.04656","snapshot_observed_at":"2026-08-08T12:54:37.926754Z","title":", keywords =","venue":null,"work_id":null,"year":2010},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":23,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.926754Z"},"links":{"cited_paper":"/paper/2010.04656","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:d1944c0ad316ea0e46ca61111d2f9d238903e396376c53c688ce03f02ba4abfc","observation_id":"c3c85c8a-1cee-41f2-bb49-677783833dd6","resolution":{"observed_at":"2026-08-08T12:54:37.926754Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0504230","last_updated":"2005-04-10T14:20:42Z","snapshot_observed_at":"2026-07-07T00:49:48.159367Z","submitted_at":"2005-04-10T14:20:42Z","title":"Morphologies of Ultracompact HII Regions in W49A and Sgr B2: Prevalence of Shells and a Modified Classification Scheme","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0504230","snapshot_observed_at":"2026-08-08T12:54:37.932386Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":24,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.932386Z"},"links":{"cited_paper":"/paper/astro-ph/0504230","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:4516ac3d6c147fa9e1c2d48803812f129de79966a2669c4060d77eb40f31478b","observation_id":"54178bad-ad54-45b2-adb9-7d6ad35b1e20","resolution":{"observed_at":"2026-08-08T12:54:37.932386Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2111.01859","last_updated":"2021-11-02T19:28:34Z","snapshot_observed_at":"2026-07-06T12:04:47.225133Z","submitted_at":"2021-11-02T19:28:34Z","title":"Surveying the Giant HII Regions of the Milky Way with SOFIA: III. W49A","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2111.01859","snapshot_observed_at":"2026-08-08T12:54:37.937475Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":25,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.937475Z"},"links":{"cited_paper":"/paper/2111.01859","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:39dc7d2df3845041e20a31cdea04fa33ac1ad00dd72f6df7ddeb93c441d55803","observation_id":"ccf8395e-5901-499e-a603-055c4b0df0ab","resolution":{"observed_at":"2026-08-08T12:54:37.937475Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.942921Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":26,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.942921Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:214c07a43770acd77d959be3fd90ad8b95533363b56037b2ec8ab5813f39c024","observation_id":"a9ed9332-978e-4447-bb20-ac4888642088","resolution":{"observed_at":"2026-08-08T12:54:37.942921Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.947816Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":27,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.947816Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:4d5b87566eee3ff63f839341ce0dc214c6f7b070fe1a5d00a455098c4b7394b8","observation_id":"64ec7337-135e-42a2-aaca-c778b5835027","resolution":{"observed_at":"2026-08-08T12:54:37.947816Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1086/173396","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.569480Z","title":", keywords =","venue":null,"work_id":"874270c8-a7a3-4d69-80d4-23443a945c47","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":28,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.952348Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:b9a50065d0bd96edf572808eb810fb3590c75b30faabd8ddfdf36698431d3bff","observation_id":"9f484f0b-175d-451d-939d-c20cd4ba59c6","resolution":{"observed_at":"2026-08-08T12:54:38.574446Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2407.07359","last_updated":"2024-07-10T04:33:17Z","snapshot_observed_at":"2026-07-06T18:44:03.869577Z","submitted_at":"2024-07-10T04:33:17Z","title":"ALMA-IMF XIV: Free-Free Templates Derived from H$41\\alpha$ and Ionized Gas Content in Fifteen Massive Protoclusters","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2407.07359","snapshot_observed_at":"2026-08-08T12:54:37.957561Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":29,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.957561Z"},"links":{"cited_paper":"/paper/2407.07359","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:f7dbf415ef490ac16ff65d7c43afc4e509ae6b1beec654eced110ef4f3944a5c","observation_id":"b08e6832-314f-4717-b534-4ee73e56bacc","resolution":{"observed_at":"2026-08-08T12:54:37.957561Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1309.4129","last_updated":"2014-01-09T14:57:54Z","snapshot_observed_at":"2026-07-06T03:23:11.726073Z","submitted_at":"2013-09-16T22:18:26Z","title":"MUSCLE W49 : A Multi-Scale Continuum and Line Exploration of the Most Luminous Star Formation Region in the Milky Way. I. Data and The Mass Structure of the Giant Molecular Cloud","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1309.4129","snapshot_observed_at":"2026-08-08T12:54:37.963035Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":30,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.963035Z"},"links":{"cited_paper":"/paper/1309.4129","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:73ba8552402898ae6f882b657a4e9a4580ca88f5e155c34c4099687995b12dc8","observation_id":"4b9998fe-758c-4e88-bbb8-1d1aad7e63e9","resolution":{"observed_at":"2026-08-08T12:54:37.963035Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2212.05633","last_updated":"2022-12-11T23:58:59Z","snapshot_observed_at":"2026-07-06T14:29:16.753343Z","submitted_at":"2022-12-11T23:58:59Z","title":"Clustered Formation of Massive Stars within an Ionized Rotating Disk","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2212.05633","snapshot_observed_at":"2026-08-08T12:54:37.967725Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":31,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.967725Z"},"links":{"cited_paper":"/paper/2212.05633","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:50b8d54f7550b0146cfc47279a071f91b396a9de55292f000f98b4f62d165f7a","observation_id":"4ab1731b-57b8-4ff2-9cd8-290ad340a106","resolution":{"observed_at":"2026-08-08T12:54:37.967725Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1906.05649","last_updated":"2019-12-09T17:42:13Z","snapshot_observed_at":"2026-07-06T08:00:05.560342Z","submitted_at":"2019-06-13T13:05:55Z","title":"When H II Regions are Complicated: Considering Perturbations from Winds, Radiation Pressure, and Other Effects","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1906.05649","snapshot_observed_at":"2026-08-08T12:54:37.972454Z","title":", keywords =","venue":null,"work_id":null,"year":1906},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":32,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.972454Z"},"links":{"cited_paper":"/paper/1906.05649","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:4e90e22a1d8469f9433376640088e43a293d8037bf1cfe668da20d8b36419cab","observation_id":"d04de4f3-f3f3-4f51-ad5f-ac9bd5eaab16","resolution":{"observed_at":"2026-08-08T12:54:37.972454Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2004.09555","last_updated":"2020-04-22T15:22:27Z","snapshot_observed_at":"2026-07-06T09:13:49.452689Z","submitted_at":"2020-04-20T18:17:56Z","title":"The MUSTANG-2 Galactic Plane Survey (MGPS90) pilot","version":2},"cited_work":{"arxiv_id":"2004.09555","doi":null,"metadata_source":"pith","pith_arxiv_id":"2004.09555","snapshot_observed_at":"2026-08-08T12:54:40.785192Z","title":"The MUSTANG-2 Galactic Plane Survey (MGPS90) pilot","venue":"astro-ph.GA","work_id":"41a0a3cc-fc61-417e-96e2-2d8c315cdb94","year":2020},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":33,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.978384Z"},"links":{"cited_paper":"/paper/2004.09555","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:b29bd7e58125f755eb666f55f5fdcdb325dd37e44fbfc1d93408fa80f53a38aa","observation_id":"3cde216c-713c-4b4b-a289-067ab2bf1124","resolution":{"observed_at":"2026-08-08T12:54:40.790527Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:37.983335Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":34,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.983335Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:b46ee8d18591f8fb4faa4fa8f4e437ea350b15c90b1115c715388a90e8082ac9","observation_id":"d8c32b6f-d0b3-4ef6-81d4-0d8f9aa12086","resolution":{"observed_at":"2026-08-08T12:54:37.983335Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1605.09402","last_updated":"2016-06-19T17:43:55Z","snapshot_observed_at":"2026-08-08T15:21:20.985976Z","submitted_at":"2016-05-30T20:10:31Z","title":"Toward gas exhaustion in the W51 high-mass protoclusters","version":3},"cited_work":{"arxiv_id":"1605.09402","doi":null,"metadata_source":"pith","pith_arxiv_id":"1605.09402","snapshot_observed_at":"2026-08-08T12:54:40.764654Z","title":"Toward gas exhaustion in the W51 high-mass protoclusters","venue":"astro-ph.GA","work_id":"858cb3b1-f088-4417-ba75-e7eab7ed80d9","year":2016},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":35,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.987906Z"},"links":{"cited_paper":"/paper/1605.09402","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:e698c3f49856eee210803354e3795790e3fb7323e8afb15a36dc13c8d762fb04","observation_id":"5cc8b996-ddd1-4b9d-b00c-dbc3584d17a0","resolution":{"observed_at":"2026-08-08T12:54:40.769662Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:40.744068Z","title":", keywords =","venue":null,"work_id":"0f00133b-3ee2-494a-aa74-6c2c07796c1f","year":2011},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":36,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.993199Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:53a4c085485cbd2dbb3018d070261e104990306707b9e695c6687b54a37a9815","observation_id":"8c6a0762-356f-4256-93a3-c0bdbecab10f","resolution":{"observed_at":"2026-08-08T12:54:40.748773Z","resolver_source":"arxiv_id_nonexistent","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2312.07275","last_updated":"2024-05-02T10:14:44Z","snapshot_observed_at":"2026-07-06T17:00:29.200522Z","submitted_at":"2023-12-12T13:54:20Z","title":"The SARAO MeerKAT 1.3 GHz Galactic Plane Survey","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2312.07275","snapshot_observed_at":"2026-08-08T12:54:37.998470Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":37,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:37.998470Z"},"links":{"cited_paper":"/paper/2312.07275","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:a2c5e7be70d77da7b3b264e2f3a78d24b5b06c67d85d078f7d76f296b9fe29e8","observation_id":"d60ec115-0fc5-4b49-a0e1-af9a541906d2","resolution":{"observed_at":"2026-08-08T12:54:37.998470Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.003122Z","title":"Protostars and Planets V , year = 2007, editor =","venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":38,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.003122Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:04d40fca91f2310b1ede42fa3f8111baa3462ad47e933987d9a172a38e0135a8","observation_id":"1757e66a-91d2-4751-b860-e8a4d5ca9ca2","resolution":{"observed_at":"2026-08-08T12:54:38.003122Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.007746Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":39,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.007746Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:c5a4a30e6d335f2e417c16e4dc0a4d225bd786952fe69f8bc93340cbbdb8b3f8","observation_id":"b87046a6-a1d4-47d6-9f16-3ba4c6105e88","resolution":{"observed_at":"2026-08-08T12:54:38.007746Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0409410","last_updated":"2004-09-16T19:53:31Z","snapshot_observed_at":"2026-07-07T00:44:48.684699Z","submitted_at":"2004-09-16T19:53:31Z","title":"Massive Star Formation in the W49 Giant Molecular Cloud: Implications for the Formation of Massive Star Clusters","version":1},"cited_work":{"arxiv_id":"astro-ph/0409410","doi":null,"metadata_source":"pith","pith_arxiv_id":"astro-ph/0409410","snapshot_observed_at":"2026-08-08T12:54:40.570456Z","title":"Massive Star Formation in the W49 Giant Molecular Cloud: Implications for the Formation of Massive Star Clusters","venue":"astro-ph","work_id":"2f6efdfe-5409-40e0-9a8d-d1d5f828f74d","year":2004},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":40,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.012468Z"},"links":{"cited_paper":"/paper/astro-ph/0409410","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:81e6e77690c0d903598558f45db348597f0af18114e880f47bc7a8c1d37a3831","observation_id":"518e4bcc-baa4-41e4-a9a5-eca465bdd2df","resolution":{"observed_at":"2026-08-08T12:54:40.575741Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"0806.4122","last_updated":"2008-06-25T15:01:44Z","snapshot_observed_at":"2026-07-06T01:38:47.416864Z","submitted_at":"2008-06-25T15:01:44Z","title":"Evolution of Massive Protostars with High Accretion Rates","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"0806.4122","snapshot_observed_at":"2026-08-08T12:54:38.017289Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":41,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.017289Z"},"links":{"cited_paper":"/paper/0806.4122","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:376fcb91c63b39568daa61e229104b6fea420c9277c8aa7664dba6e006de51eb","observation_id":"e695ad25-5711-49b1-96cf-764160c1c25f","resolution":{"observed_at":"2026-08-08T12:54:38.017289Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1005.2827","last_updated":"2010-05-17T08:03:52Z","snapshot_observed_at":"2026-07-06T02:10:19.764387Z","submitted_at":"2010-05-17T08:03:52Z","title":"Evolution of Massive Protostars via Disk Accretion","version":1},"cited_work":{"arxiv_id":"1005.2827","doi":null,"metadata_source":"pith","pith_arxiv_id":"1005.2827","snapshot_observed_at":"2026-08-08T12:54:40.534864Z","title":"Evolution of Massive Protostars via Disk Accretion","venue":"astro-ph.SR","work_id":"cfb7461a-9755-4992-b0c5-5c9c03871e8f","year":2010},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":42,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.022351Z"},"links":{"cited_paper":"/paper/1005.2827","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:f51380a480045478ebfc1181b29bf7a50f87c0aff14292b61d214ee027be8dc4","observation_id":"69e84f7d-92d7-422e-9b3d-7d6a44b6f489","resolution":{"observed_at":"2026-08-08T12:54:40.539815Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2406.13801","last_updated":"2024-06-19T20:06:34Z","snapshot_observed_at":"2026-07-06T18:33:54.443005Z","submitted_at":"2024-06-19T20:06:34Z","title":"A Census of the Deep Radio Sky with the VLA I: 10GHz Survey of the GOODS-N field","version":1},"cited_work":{"arxiv_id":"2406.13801","doi":null,"metadata_source":"pith","pith_arxiv_id":"2406.13801","snapshot_observed_at":"2026-08-08T12:54:40.513829Z","title":"A Census of the Deep Radio Sky with the VLA I: 10GHz Survey of the GOODS-N field","venue":"astro-ph.GA","work_id":"05ce44fb-cadb-4743-99e9-66d2882b81ab","year":2024},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":43,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.027236Z"},"links":{"cited_paper":"/paper/2406.13801","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:cc6d5e87f175c8dc1be9ad83e6958b76ce667f65767dc30c21162f95a3a05364","observation_id":"fd032b61-59d1-45a9-8dd1-07624efb0304","resolution":{"observed_at":"2026-08-08T12:54:40.518850Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1803.09334","last_updated":"2018-03-25T20:36:59Z","snapshot_observed_at":"2026-07-06T06:30:07.223267Z","submitted_at":"2018-03-25T20:36:59Z","title":"The Coordinated Radio and Infrared Survey for High-Mass Star Formation III. A catalogue of northern ultra-compact H II regions","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1803.09334","snapshot_observed_at":"2026-08-08T12:54:38.032099Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":44,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.032099Z"},"links":{"cited_paper":"/paper/1803.09334","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:afac1068e5c3dbb07293d682d57799ace3ffded034160780454b3594fd5b53e1","observation_id":"ba3eca91-501f-4f90-b850-2dd7a160454c","resolution":{"observed_at":"2026-08-08T12:54:38.032099Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0309131","last_updated":"2004-07-29T16:32:15Z","snapshot_observed_at":"2026-07-07T00:36:06.465699Z","submitted_at":"2003-09-04T18:35:33Z","title":"The Formation of Massive Stars by Accretion Through Trapped Hypercompact HII Regions","version":2},"cited_work":{"arxiv_id":"astro-ph/0309131","doi":null,"metadata_source":"pith","pith_arxiv_id":"astro-ph/0309131","snapshot_observed_at":"2026-08-08T12:54:40.475668Z","title":"The Formation of Massive Stars by Accretion Through Trapped Hypercompact HII Regions","venue":"astro-ph","work_id":"7903b6db-17f0-4ee3-9c69-552e2a3bb530","year":2003},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":45,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.037322Z"},"links":{"cited_paper":"/paper/astro-ph/0309131","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:c3032170441c4158e5271c6b0ad57585ded569f50aab3ff3d4e5f8f7916ea108","observation_id":"dc3a835f-66b6-4c86-bdcb-09566cb68013","resolution":{"observed_at":"2026-08-08T12:54:40.480897Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0510176","last_updated":"2005-10-06T14:01:08Z","snapshot_observed_at":"2026-07-07T00:54:46.324439Z","submitted_at":"2005-10-06T14:01:08Z","title":"Observations on the Formation of Massive Stars by Accretion","version":1},"cited_work":{"arxiv_id":"astro-ph/0510176","doi":null,"metadata_source":"pith","pith_arxiv_id":"astro-ph/0510176","snapshot_observed_at":"2026-08-08T12:54:40.454282Z","title":"Observations on the Formation of Massive Stars by Accretion","venue":"astro-ph","work_id":"0850233c-6e40-45d7-ab75-9b5fb1f4c373","year":2005},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":46,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.042172Z"},"links":{"cited_paper":"/paper/astro-ph/0510176","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:ead766fbd3a025ddf56b80c82adcccc1a7e53680eed8d6dedf5a3935d9a17e0b","observation_id":"92449fb5-21db-4ca6-9b5a-f2f16824177f","resolution":{"observed_at":"2026-08-08T12:54:40.459259Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0603856","last_updated":"2007-06-15T16:28:27Z","snapshot_observed_at":"2026-07-07T00:59:30.556373Z","submitted_at":"2006-03-31T16:49:18Z","title":"The formation of massive stars: accretion, disks and the development of hypercompact HII regions","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0603856","snapshot_observed_at":"2026-08-08T12:54:38.046953Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":47,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.046953Z"},"links":{"cited_paper":"/paper/astro-ph/0603856","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:89aed1b8a21401dce625e3a1b819f5a252ad04742776d6bbb6c3a999f237bfd3","observation_id":"6cd9e9d6-13a9-4bd9-9f3d-2fc42ab59c21","resolution":{"observed_at":"2026-08-08T12:54:38.046953Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"0708.3388","last_updated":"2007-11-15T18:52:56Z","snapshot_observed_at":"2026-07-06T01:29:43.837021Z","submitted_at":"2007-08-24T19:18:38Z","title":"The Early Evolution of Massive Stars: Radio Recombination Line Spectra","version":2},"cited_work":{"arxiv_id":"0708.3388","doi":null,"metadata_source":"pith","pith_arxiv_id":"0708.3388","snapshot_observed_at":"2026-08-08T12:54:40.418073Z","title":"The Early Evolution of Massive Stars: Radio Recombination Line Spectra","venue":"astro-ph","work_id":"4bca2b48-d790-4fbe-a609-60564a1b6bda","year":2007},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":48,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.051530Z"},"links":{"cited_paper":"/paper/0708.3388","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:94a02e60aab7eb0b5507cae12f2e2ab3e1c37efd1d9a7f156762123a6b9726e1","observation_id":"cc1942ab-a4c0-474e-a650-8f7d26acf749","resolution":{"observed_at":"2026-08-08T12:54:40.423197Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1051/0004-6361/201731727","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.546500Z","title":null,"venue":null,"work_id":"16c2685c-7b90-4649-9f0b-67dbcb043d9d","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":49,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.056254Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:aec7cd3c2ebf280c752992c41dddfe41a7086cd1e391b428c186170298ed2ca6","observation_id":"ee359b7c-7782-4b4f-9818-de1bf430f9b2","resolution":{"observed_at":"2026-08-08T12:54:38.550993Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1804.10211","last_updated":"2018-04-26T18:00:05Z","snapshot_observed_at":"2026-07-06T06:35:40.705768Z","submitted_at":"2018-04-26T18:00:05Z","title":"First hydrodynamics simulations of radiation forces and photoionization feedback in massive star formation","version":1},"cited_work":{"arxiv_id":"1804.10211","doi":null,"metadata_source":"pith","pith_arxiv_id":"1804.10211","snapshot_observed_at":"2026-08-08T12:54:40.396495Z","title":"First hydrodynamics simulations of radiation forces and photoionization feedback in massive star formation","venue":"astro-ph.GA","work_id":"6f209108-7768-49e0-88bc-43aa84e352fd","year":2018},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":50,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.060893Z"},"links":{"cited_paper":"/paper/1804.10211","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:c108b0dbd1228098b8df894eaae39c73221292ebce513b74a63a3621fbe879d7","observation_id":"84678e76-30a5-42c8-9163-edc68bee05c5","resolution":{"observed_at":"2026-08-08T12:54:40.401976Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:40.374451Z","title":", keywords =","venue":null,"work_id":"38ce1184-79f8-4ac6-8644-046b741910da","year":2001},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":51,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.065808Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:2b770a4f4c5b5672118de6c6d99b8d00519a3936285021d2afdc4bc202d65037","observation_id":"dc4ad9ff-7c0f-401b-9e33-f280da7e2c99","resolution":{"observed_at":"2026-08-08T12:54:40.379070Z","resolver_source":"arxiv_id_nonexistent","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.070449Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":52,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.070449Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:f38b300814e3332cc6e4ae7b53265747e5180c1ed3e04f3873e59ad0db807b95","observation_id":"fe2abdbc-77c2-48a1-9789-930aec659176","resolution":{"observed_at":"2026-08-08T12:54:38.070449Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.075174Z","title":"Massive Star Birth: A Crossroads of Astrophysics , year = 2005, editor =","venue":null,"work_id":null,"year":2005},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":53,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.075174Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:1f9fe4083157d4953622d00911e73eb6eb46cf8d36f862f6ec0159f7d6180357","observation_id":"710c7d04-ae35-4331-9e3d-874b07682375","resolution":{"observed_at":"2026-08-08T12:54:38.075174Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.079771Z","title":"Encyclopedia of Astrophysics , year = 2026, volume =","venue":null,"work_id":null,"year":2026},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":54,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.079771Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:05b3b9d2398860da96a6d48f97953759fe371742e151b3cbb093565a8e187d37","observation_id":"1f0f76db-03cb-4ca6-902d-5aea6d6ba8f0","resolution":{"observed_at":"2026-08-08T12:54:38.079771Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0210157","last_updated":"2003-02-14T01:50:05Z","snapshot_observed_at":"2026-07-07T00:28:57.395976Z","submitted_at":"2002-10-07T17:48:13Z","title":"A Grid of NLTE Line-Blanketed Model Atmospheres of O-type Stars","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0210157","snapshot_observed_at":"2026-08-08T12:54:38.084327Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":55,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.084327Z"},"links":{"cited_paper":"/paper/astro-ph/0210157","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:63503681faff613e50cbe378d48932cfa82854eb72d16c8ab554bdb4b3465377","observation_id":"235be469-d107-423e-a3dd-86a1193fcf03","resolution":{"observed_at":"2026-08-08T12:54:38.084327Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0611891","last_updated":"2006-11-29T14:12:43Z","snapshot_observed_at":"2026-07-07T01:05:02.944934Z","submitted_at":"2006-11-29T14:12:43Z","title":"A Grid of NLTE Line-Blanketed Model Atmospheres of Early B-type Stars","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0611891","snapshot_observed_at":"2026-08-08T12:54:38.089157Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":56,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.089157Z"},"links":{"cited_paper":"/paper/astro-ph/0611891","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:25ae570a3f780c43d316b037e6d66493730d85d6fc8355ec74260a18ae3ff101","observation_id":"b89cfce8-59d9-4b83-8436-5fc7ef6a8a8f","resolution":{"observed_at":"2026-08-08T12:54:38.089157Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1606.07645","last_updated":"2016-06-27T02:27:25Z","snapshot_observed_at":"2026-07-06T05:01:11.523480Z","submitted_at":"2016-06-24T11:29:56Z","title":"Cloud Structure of Galactic OB Cluster Forming Regions from Combining Ground and Space Based Bolometric Observations","version":2},"cited_work":{"arxiv_id":"1606.07645","doi":null,"metadata_source":"pith","pith_arxiv_id":"1606.07645","snapshot_observed_at":"2026-08-08T12:54:40.085376Z","title":"Cloud Structure of Galactic OB Cluster Forming Regions from Combining Ground and Space Based Bolometric Observations","venue":"astro-ph.GA","work_id":"b9ee602e-5328-4a10-b94a-e02eb637abce","year":2016},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":57,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.094024Z"},"links":{"cited_paper":"/paper/1606.07645","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:083ddd54fa47dca392411573622255df9643e18230e127f7b5eb6f150a9c9cfc","observation_id":"1d844912-c05f-47e8-8878-f711dc6ca6dc","resolution":{"observed_at":"2026-08-08T12:54:40.090485Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1808.07702","last_updated":"2018-12-05T00:29:55Z","snapshot_observed_at":"2026-07-06T06:57:02.261875Z","submitted_at":"2018-08-23T11:24:31Z","title":"Investigating fragmentation of gas structures in OB cluster-forming molecular clump G33.92+0.11 with 1000 AU resolution observations of ALMA","version":2},"cited_work":{"arxiv_id":"1808.07702","doi":null,"metadata_source":"pith","pith_arxiv_id":"1808.07702","snapshot_observed_at":"2026-08-08T12:54:40.062971Z","title":"Investigating fragmentation of gas structures in OB cluster-forming molecular clump G33.92+0.11 with 1000 AU resolution observations of ALMA","venue":"astro-ph.GA","work_id":"f5e8094e-7d7e-4495-92ae-278f7ac80f2e","year":2018},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":58,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.098832Z"},"links":{"cited_paper":"/paper/1808.07702","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:dd6cef1090d199ba28cc130c17fc2640391f2a336382c5b647797bec99759c63","observation_id":"6992a277-1e55-4f07-b1e3-7654d165c634","resolution":{"observed_at":"2026-08-08T12:54:40.070162Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2105.03554","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:40.038213Z","title":"Catalogues of candidate hot molecular cores and hyper/ultra compact H II regions","venue":null,"work_id":"c80fa8fc-1e60-4bac-9d7a-39ca2f2ece0a","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":59,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.103498Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:ef8f3697a6bd86f4d9385ffedb45ce3257562fe1034b72fe14fd48e37cacc26c","observation_id":"b39c2fd6-20f2-4c6d-9a2e-dd4501242001","resolution":{"observed_at":"2026-08-08T12:54:40.045653Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2407.18719","last_updated":"2024-07-26T13:10:32Z","snapshot_observed_at":"2026-07-06T18:52:25.478047Z","submitted_at":"2024-07-26T13:10:32Z","title":"ALMA-IMF XV: The core mass function in the high-mass star-formation regime","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2407.18719","snapshot_observed_at":"2026-08-08T12:54:38.108119Z","title":"Core mass function in the high-mass star formation regime","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":60,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.108119Z"},"links":{"cited_paper":"/paper/2407.18719","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:841d85e96f6bad00b219dd51ffb87efa9d5b6f967421c48b1dad7f86fb09e450","observation_id":"cd59258a-e826-42b6-b851-17edd635a0eb","resolution":{"observed_at":"2026-08-08T12:54:38.108119Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1305.4485","last_updated":"2013-05-20T10:10:23Z","snapshot_observed_at":"2026-07-06T03:13:44.761600Z","submitted_at":"2013-05-20T10:10:23Z","title":"Evolution of Thermally Pulsing Asymptotic Giant Branch Stars I. The COLIBRI Code","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1305.4485","snapshot_observed_at":"2026-08-08T12:54:38.113581Z","title":"The COLIBRI code","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":61,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.113581Z"},"links":{"cited_paper":"/paper/1305.4485","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:afe6b41946768533e4905c6f93e3511ab76b649ca85e9b1c7e6c8081d824e8ba","observation_id":"9866ae98-3f78-40de-80ca-4fd3c8c06357","resolution":{"observed_at":"2026-08-08T12:54:38.113581Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0503346","last_updated":"2005-03-16T15:14:50Z","snapshot_observed_at":"2026-07-07T00:49:04.277717Z","submitted_at":"2005-03-16T15:14:50Z","title":"A new calibration of stellar parameters of Galactic O stars","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"astro-ph/0503346","snapshot_observed_at":"2026-08-08T12:54:38.118944Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":62,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.118944Z"},"links":{"cited_paper":"/paper/astro-ph/0503346","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:ec712a4ef83c2dcbb665686aa179e8832810bbc7d8830c89c35b710dde9dfc52","observation_id":"6f0fcc3f-d5ed-43c1-a34e-deed1064ffcf","resolution":{"observed_at":"2026-08-08T12:54:38.118944Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2208.07796","last_updated":"2022-08-19T03:09:23Z","snapshot_observed_at":"2026-07-06T13:42:24.750714Z","submitted_at":"2022-08-16T15:19:15Z","title":"The physical and chemical structure of Sagittarius B2 -- VI. UCHII regions in Sgr B2","version":3},"cited_work":{"arxiv_id":"2208.07796","doi":null,"metadata_source":"pith","pith_arxiv_id":"2208.07796","snapshot_observed_at":"2026-08-08T12:54:39.756487Z","title":"The physical and chemical structure of Sagittarius B2 -- VI. UCHII regions in Sgr B2","venue":"astro-ph.GA","work_id":"dca59476-7faa-4ff0-a311-ab20c89135d3","year":2022},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":63,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.123657Z"},"links":{"cited_paper":"/paper/2208.07796","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:869905bc68d133e45671e9a160d39b8badd5622b017d044fc130173dedb36ebd","observation_id":"0f2b4f33-9333-45e6-9823-1d8deff93c4a","resolution":{"observed_at":"2026-08-08T12:54:39.761698Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.128367Z","title":null,"venue":null,"work_id":null,"year":1967},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":64,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.128367Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:27462bf3225dc52ab3dc1ac1104b1484f6731978d0214c41bda54f02320cafb1","observation_id":"5ceb9ca4-3097-4982-9d83-fa4aadfd1fe9","resolution":{"observed_at":"2026-08-08T12:54:38.128367Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2111.04929","last_updated":"2021-11-10T06:05:51Z","snapshot_observed_at":"2026-07-30T23:54:36.137867Z","submitted_at":"2021-11-09T03:22:47Z","title":"Star burst in W49N presumably induced by cloud-cloud collision","version":2},"cited_work":{"arxiv_id":"2111.04929","doi":null,"metadata_source":"pith","pith_arxiv_id":"2111.04929","snapshot_observed_at":"2026-08-08T12:54:39.735625Z","title":"Star burst in W49N presumably induced by cloud-cloud collision","venue":"astro-ph.GA","work_id":"985fea5a-2701-4e5a-8873-9c063a3c7449","year":2021},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":65,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.133120Z"},"links":{"cited_paper":"/paper/2111.04929","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:c61916e960a268c17458b51cd9099fcd1e82f29760d31f2a48702d806a085ae9","observation_id":"4d2f40e7-153d-4aac-8f29-11a42ec1fde1","resolution":{"observed_at":"2026-08-08T12:54:39.740715Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1093/pasj/61.1.39","metadata_source":"doi_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.494496Z","title":", keywords =","venue":null,"work_id":"f8d9b055-2aae-428f-9999-33b586944337","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":66,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.137888Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:882670dab0888f12c5d9b1c2a690d63d385278280caafc0adc19891003f70a57","observation_id":"ec664656-99b4-4581-8e63-659a7a0c0556","resolution":{"observed_at":"2026-08-08T12:54:38.499291Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2204.04617","last_updated":"2022-05-20T20:00:28Z","snapshot_observed_at":"2026-07-06T12:58:38.340346Z","submitted_at":"2022-04-10T07:01:47Z","title":"W49N MCN-a: a disk accreting massive protostar embedded in an early-phase hot molecular core","version":2},"cited_work":{"arxiv_id":"2204.04617","doi":null,"metadata_source":"pith","pith_arxiv_id":"2204.04617","snapshot_observed_at":"2026-08-08T12:54:39.714234Z","title":"W49N MCN-a: a disk accreting massive protostar embedded in an early-phase hot molecular core","venue":"astro-ph.GA","work_id":"1c4f2f8d-4309-460d-aeff-8a8b092aa5ac","year":2022},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":67,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.142630Z"},"links":{"cited_paper":"/paper/2204.04617","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:e6d041b9905c73155e4ebcd5e491c246cd54709247bd99a79a916ade2cf794a5","observation_id":"1c5f2049-374a-4703-9b13-d1aa2b208897","resolution":{"observed_at":"2026-08-08T12:54:39.719422Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1706.00118","last_updated":"2017-05-31T23:02:09Z","snapshot_observed_at":"2026-07-06T05:45:05.277611Z","submitted_at":"2017-05-31T23:02:09Z","title":"High-Mass Star and Massive Cluster Formation in the Milky Way","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1706.00118","snapshot_observed_at":"2026-08-08T12:54:38.147577Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":68,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.147577Z"},"links":{"cited_paper":"/paper/1706.00118","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:22bbab0ac6219609586af17c54e0d57d7fe3d59cdb0a9d9f94f963cbdb27cb3f","observation_id":"6a69bab3-8204-4f36-b290-a9bb6c438a39","resolution":{"observed_at":"2026-08-08T12:54:38.147577Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1102.4702","last_updated":"2011-02-23T09:53:26Z","snapshot_observed_at":"2026-07-06T02:23:57.387199Z","submitted_at":"2011-02-23T09:53:26Z","title":"The Luminosity Functions and Timescales of MYSOs and Compact HII regions","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1102.4702","snapshot_observed_at":"2026-08-08T12:54:38.152824Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":69,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.152824Z"},"links":{"cited_paper":"/paper/1102.4702","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:da28eb761b3c2d59081bb117beb677b1c490a6c0a7061b0120b1b59b172489c1","observation_id":"9ccb5f7c-8fa7-49f5-843f-b2ed2c115674","resolution":{"observed_at":"2026-08-08T12:54:38.152824Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1804.02392","last_updated":"2018-04-06T12:21:00Z","snapshot_observed_at":"2026-08-08T13:56:34.343559Z","submitted_at":"2018-04-06T12:21:00Z","title":"The unexpectedly large proportion of high-mass star-forming cores in a Galactic mini-starburst","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1804.02392","snapshot_observed_at":"2026-08-08T12:54:38.157535Z","title":"Nature Astronomy , keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":70,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.157535Z"},"links":{"cited_paper":"/paper/1804.02392","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:6f158405cf2fcc13010543fb108c363b032bf3583234b16e94afb5d9f04b9899","observation_id":"3f8f8a18-80eb-4748-983c-231acf0b4c5c","resolution":{"observed_at":"2026-08-08T12:54:38.157535Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2301.07238","last_updated":"2023-03-16T00:37:50Z","snapshot_observed_at":"2026-07-06T14:42:14.746141Z","submitted_at":"2023-01-18T00:28:09Z","title":"ALMA-IMF. V. Prestellar and protostellar core populations in the W43 cloud complex","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2301.07238","snapshot_observed_at":"2026-08-08T12:54:38.162564Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":71,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.162564Z"},"links":{"cited_paper":"/paper/2301.07238","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:8ff5f48aab53f8198a8684e9bdd4c90f86008a0bc9cbe710eaf1ce26ab6c1fd1","observation_id":"1c79517f-4d19-481e-8b02-cf8b99316ed8","resolution":{"observed_at":"2026-08-08T12:54:38.162564Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2404.02250","last_updated":"2024-04-02T19:17:14Z","snapshot_observed_at":"2026-07-30T23:56:47.240836Z","submitted_at":"2024-04-02T19:17:14Z","title":"Core to ultracompact HII region evolution in the W49A massive protocluster","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2404.02250","snapshot_observed_at":"2026-08-08T12:54:38.167130Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":72,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.167130Z"},"links":{"cited_paper":"/paper/2404.02250","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:c1212508ee3a4178de5558cd03c5f7ea701653f399c03d65d6a6f25c21b00f8c","observation_id":"dd5a18ce-1ac9-4366-94e0-cfbfa4e93aa3","resolution":{"observed_at":"2026-08-08T12:54:38.167130Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2009.10079","last_updated":"2020-12-08T16:58:54Z","snapshot_observed_at":"2026-07-06T09:57:33.351931Z","submitted_at":"2020-09-21T18:00:01Z","title":"Evolution of Stellar Feedback in HII Regions","version":2},"cited_work":{"arxiv_id":"2009.10079","doi":null,"metadata_source":"pith","pith_arxiv_id":"2009.10079","snapshot_observed_at":"2026-08-08T12:54:39.615295Z","title":"Evolution of Stellar Feedback in HII Regions","venue":"astro-ph.GA","work_id":"146fa2db-e14a-4750-9117-979a8afbd190","year":2020},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":73,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.171817Z"},"links":{"cited_paper":"/paper/2009.10079","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:ba66968d261051f38a734000244ecc91243d47d05705f760e710e2b1ed08feeb","observation_id":"bf82283a-858b-47cf-8ddf-b47e7375b8d7","resolution":{"observed_at":"2026-08-08T12:54:39.620426Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.176445Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":74,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.176445Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:097218df40d2dd8af9d1653f0431e5c089cfa6363a8cc07262d23b2b071e79b9","observation_id":"0602b17c-dece-4dac-a87b-0adccae69983","resolution":{"observed_at":"2026-08-08T12:54:38.176445Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2602.06196","last_updated":"2026-05-13T09:12:20Z","snapshot_observed_at":"2026-07-30T12:40:24.557640Z","submitted_at":"2026-02-05T21:11:27Z","title":"Compact HII Regions as Clocks of Massive-Star Formation: Evidence for Long Formation Timescales","version":2},"cited_work":{"arxiv_id":"2602.06196","doi":null,"metadata_source":"pith","pith_arxiv_id":"2602.06196","snapshot_observed_at":"2026-08-08T12:54:39.593802Z","title":"Compact HII Regions as Clocks of Massive-Star Formation: Evidence for Long Formation Timescales","venue":"astro-ph.SR","work_id":"26ab8e65-dd58-44ba-bd51-55098baede43","year":2026},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":75,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.180777Z"},"links":{"cited_paper":"/paper/2602.06196","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:5ecda18ca978d823832aa9a4966b2f223ed0345f459dbd69d9c1f9bfd0eb11d2","observation_id":"d3cbbdce-1e8e-4a83-b317-65e66087d5a3","resolution":{"observed_at":"2026-08-08T12:54:39.598939Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1911.04465","last_updated":"2020-07-29T12:27:15Z","snapshot_observed_at":"2026-08-09T07:25:42.225109Z","submitted_at":"2019-11-11T18:59:47Z","title":"The Origin of Massive Stars: The Inertial-Inflow Model","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1911.04465","snapshot_observed_at":"2026-08-08T12:54:38.185407Z","title":", keywords =","venue":null,"work_id":null,"year":1911},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":76,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.185407Z"},"links":{"cited_paper":"/paper/1911.04465","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:8c5334ebd80bcdd0424c6b9b8a87a44600ab0343c0e6a11abc7d45dfede4907b","observation_id":"d9245a64-9e5d-47e4-9545-e404ab1b9dfe","resolution":{"observed_at":"2026-08-08T12:54:38.185407Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1210.3631","last_updated":"2012-10-12T20:28:48Z","snapshot_observed_at":"2026-07-06T02:57:33.663054Z","submitted_at":"2012-10-12T20:28:48Z","title":"Spitzer and Herschel multiwavelength characterization of the dust content of evolved HII regions","version":1},"cited_work":{"arxiv_id":"1210.3631","doi":null,"metadata_source":"pith","pith_arxiv_id":"1210.3631","snapshot_observed_at":"2026-08-08T12:54:39.558091Z","title":"Spitzer and Herschel multiwavelength characterization of the dust content of evolved HII regions","venue":"astro-ph.GA","work_id":"16448e5f-3486-4e57-84d7-5a26ea0ee5e5","year":2012},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":77,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.190512Z"},"links":{"cited_paper":"/paper/1210.3631","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:5c560080a701815968a2543729984eb05b6a01ab71bc6313db103aca9bd60fc7","observation_id":"06e6895b-b2df-41eb-ae6f-01c34c97aa46","resolution":{"observed_at":"2026-08-08T12:54:39.562932Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.195190Z","title":", year = 1973, month = nov, volume =","venue":null,"work_id":null,"year":1973},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":78,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.195190Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:d9bc5f1ec064175dbec7bdf84f3feec2a46dc46336577dca877fcfd0386b48a7","observation_id":"f0dbe20f-3a18-4d8b-a162-db74d6dfc08c","resolution":{"observed_at":"2026-08-08T12:54:38.195190Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.199814Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":79,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.199814Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:5bb586d0487298f27757b592f32fabc90b12af3cfc15979d3f33948940300e52","observation_id":"12e9660a-dafc-4ad2-a881-d514e7c768c3","resolution":{"observed_at":"2026-08-08T12:54:38.199814Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1909.07386","last_updated":"2019-09-16T18:00:00Z","snapshot_observed_at":"2026-08-07T13:02:49.940706Z","submitted_at":"2019-09-16T18:00:00Z","title":"Constraints on the production and escape of ionizing radiation from the emission-line spectra of metal-poor star-forming galaxies","version":1},"cited_work":{"arxiv_id":"1909.07386","doi":null,"metadata_source":"pith","pith_arxiv_id":"1909.07386","snapshot_observed_at":"2026-08-08T12:54:39.537333Z","title":"Constraints on the production and escape of ionizing radiation from the emission-line spectra of metal-poor star-forming galaxies","venue":"astro-ph.GA","work_id":"a926e34a-7a06-4f7d-ac25-69b41e0d9265","year":2019},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":80,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.204379Z"},"links":{"cited_paper":"/paper/1909.07386","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:e9e1e1e4880fd154c2d747546b95f018dd775ae03256f37a6f6071a200bf9d33","observation_id":"74fefac0-ebb2-4d0a-ab67-1b689433c3af","resolution":{"observed_at":"2026-08-08T12:54:39.542343Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1001.2470","last_updated":"2010-01-14T14:29:04Z","snapshot_observed_at":"2026-07-06T02:02:49.544161Z","submitted_at":"2010-01-14T14:29:04Z","title":"H II regions: Witnesses to massive star formation","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1001.2470","snapshot_observed_at":"2026-08-08T12:54:38.209269Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":81,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.209269Z"},"links":{"cited_paper":"/paper/1001.2470","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:63cffafea0b8ed0a8406694ec8338252c67d9221c2e9adde779652bac5bbaa8b","observation_id":"9e8ff22d-3171-428e-b550-a6f0731f9f27","resolution":{"observed_at":"2026-08-08T12:54:38.209269Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1003.4998","last_updated":"2010-06-14T16:38:50Z","snapshot_observed_at":"2026-07-06T02:04:42.616288Z","submitted_at":"2010-03-25T20:37:35Z","title":"Understanding Spatial and Spectral Morphologies of Ultracompact H II Regions","version":2},"cited_work":{"arxiv_id":"1003.4998","doi":null,"metadata_source":"pith","pith_arxiv_id":"1003.4998","snapshot_observed_at":"2026-08-08T12:54:39.500846Z","title":"Understanding Spatial and Spectral Morphologies of Ultracompact H II Regions","venue":"astro-ph.GA","work_id":"2f952f12-6417-4f82-ba6a-294e974a87b9","year":2010},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":82,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.214099Z"},"links":{"cited_paper":"/paper/1003.4998","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:2f908c3c32a1ba65c8724ff3abfd14ebedbc00745817c36ae0c16a63d2afc21c","observation_id":"c7e09dca-0fe0-4083-89bb-c75d9c17ec01","resolution":{"observed_at":"2026-08-08T12:54:39.506083Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"0906.0331","last_updated":"2009-06-01T18:34:38Z","snapshot_observed_at":"2026-08-02T04:08:01.158438Z","submitted_at":"2009-06-01T18:34:38Z","title":"The Perils of Clumpfind: The Mass Spectrum of Sub-structures in Molecular Clouds","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"0906.0331","snapshot_observed_at":"2026-08-08T12:54:38.218745Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":83,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.218745Z"},"links":{"cited_paper":"/paper/0906.0331","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:4e436da860e5ba3e0adc91ea5529e89bab9950283febfbec718b3bbbff79141f","observation_id":"a04eaf3e-2fbd-4da2-9fc6-d0237a1c7763","resolution":{"observed_at":"2026-08-08T12:54:38.218745Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2212.09307","last_updated":"2023-02-20T15:08:55Z","snapshot_observed_at":"2026-07-06T14:32:18.104077Z","submitted_at":"2022-12-19T09:05:28Z","title":"ALMA-IMF VI -- Investigating the origin of stellar masses: Core mass function evolution in the W43-MM2&MM3 mini-starburst","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2212.09307","snapshot_observed_at":"2026-08-08T12:54:38.223488Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":84,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.223488Z"},"links":{"cited_paper":"/paper/2212.09307","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:ec306eaf6d6264928e205e432334c351bed60bc55cc6897ec80ea12d634dd741","observation_id":"56b12d85-6542-4191-8207-172346e90166","resolution":{"observed_at":"2026-08-08T12:54:38.223488Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1605.01200","last_updated":"2016-05-04T09:48:58Z","snapshot_observed_at":"2026-08-03T11:59:33.677838Z","submitted_at":"2016-05-04T09:48:58Z","title":"A search for ionized jets towards massive young stellar objects","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1605.01200","snapshot_observed_at":"2026-08-08T12:54:38.228503Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":85,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.228503Z"},"links":{"cited_paper":"/paper/1605.01200","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:bf0806fbce24139ee4de4ca440785a1b3c1d81807df0d5dec7c9032dbce139a9","observation_id":"1c269072-128c-4707-822b-59900163771c","resolution":{"observed_at":"2026-08-08T12:54:38.228503Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2007.12276","last_updated":"2020-07-23T21:48:08Z","snapshot_observed_at":"2026-07-06T09:41:25.799628Z","submitted_at":"2020-07-23T21:48:08Z","title":"Recombination Lines and Molecular Gas from Hypercompact HII regions in W51 A","version":1},"cited_work":{"arxiv_id":"2007.12276","doi":null,"metadata_source":"pith","pith_arxiv_id":"2007.12276","snapshot_observed_at":"2026-08-08T12:54:39.432209Z","title":"Recombination Lines and Molecular Gas from Hypercompact HII regions in W51 A","venue":"astro-ph.GA","work_id":"b93222cf-1fd5-4cec-83e7-80197eb62088","year":2020},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":86,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.233344Z"},"links":{"cited_paper":"/paper/2007.12276","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:ffac7f980b2c0b373a968db6ca1a17172cddc80547c736c90a8de7740d007820","observation_id":"deed5202-6b3a-4ed5-9b2e-35ee8d88dec1","resolution":{"observed_at":"2026-08-08T12:54:39.437614Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"0802.2944","last_updated":"2008-02-20T21:11:11Z","snapshot_observed_at":"2026-07-06T01:36:38.797845Z","submitted_at":"2008-02-20T21:11:11Z","title":"Structural Analysis of Molecular Clouds: Dendrograms","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"0802.2944","snapshot_observed_at":"2026-08-08T12:54:38.238155Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":87,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.238155Z"},"links":{"cited_paper":"/paper/0802.2944","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:cd088c35c6082818a5ab0aed1d8fc76092c5e9311e3c29b16a78706386aaf89f","observation_id":"cff60fa8-2a2b-422d-b82a-c9b4da1f49f6","resolution":{"observed_at":"2026-08-08T12:54:38.238155Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2002.02894","last_updated":"2020-02-07T16:53:09Z","snapshot_observed_at":"2026-07-06T08:55:37.851828Z","submitted_at":"2020-02-07T16:53:09Z","title":"A Massive Young Runaway Star in W49 North","version":1},"cited_work":{"arxiv_id":"2002.02894","doi":null,"metadata_source":"pith","pith_arxiv_id":"2002.02894","snapshot_observed_at":"2026-08-08T12:54:39.395696Z","title":"A Massive Young Runaway Star in W49 North","venue":"astro-ph.SR","work_id":"71e88002-24e2-4725-bef0-3f0d55ebb293","year":2020},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":88,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.242948Z"},"links":{"cited_paper":"/paper/2002.02894","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:ef73cdbaa31f3df78a27ecc2ddafb970a7357813b60349864559bba7b1176cfa","observation_id":"e0675524-a51d-44fe-a200-1df97d8479e7","resolution":{"observed_at":"2026-08-08T12:54:39.400673Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1812.00758","last_updated":"2019-07-02T09:59:52Z","snapshot_observed_at":"2026-08-08T17:28:36.928374Z","submitted_at":"2018-12-03T14:28:55Z","title":"Feedback in W49A diagnosed with radio recombination lines and models","version":2},"cited_work":{"arxiv_id":"1812.00758","doi":null,"metadata_source":"pith","pith_arxiv_id":"1812.00758","snapshot_observed_at":"2026-08-08T12:54:39.374512Z","title":"Feedback in W49A diagnosed with radio recombination lines and models","venue":"astro-ph.GA","work_id":"f13934a9-e821-40c7-ac37-fabed8475efd","year":2018},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":89,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.247820Z"},"links":{"cited_paper":"/paper/1812.00758","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:248b418767def3dd1cc3ca2553b06ca4883be7f888bf6f5de485070cdfa85678","observation_id":"1cd045c7-ea67-439d-9b7b-229f46c8717e","resolution":{"observed_at":"2026-08-08T12:54:39.379594Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2206.07062","last_updated":"2022-06-14T18:00:01Z","snapshot_observed_at":"2026-07-30T20:49:31.318600Z","submitted_at":"2022-06-14T18:00:01Z","title":"SDSS-IV MaNGA: pyPipe3D analysis release for 10,000 galaxies","version":1},"cited_work":{"arxiv_id":"2206.07062","doi":null,"metadata_source":"pith","pith_arxiv_id":"2206.07062","snapshot_observed_at":"2026-08-08T12:54:39.352157Z","title":"SDSS-IV MaNGA: pyPipe3D analysis release for 10,000 galaxies","venue":"astro-ph.GA","work_id":"f2238828-8a40-40f5-9559-c37025ea1fb9","year":2022},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":90,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.252621Z"},"links":{"cited_paper":"/paper/2206.07062","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:d42e2a8874ebe69615b1524173346e68d15ebb3a881a1b66b9023c0c6379c174","observation_id":"f503bb8c-3509-405f-b73b-15406f5ba7b7","resolution":{"observed_at":"2026-08-08T12:54:39.357398Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1909.07985","last_updated":"2019-09-17T18:00:02Z","snapshot_observed_at":"2026-08-08T13:44:18.470150Z","submitted_at":"2019-09-17T18:00:02Z","title":"The ALMA Survey of 70 $\\mu$m dark High-mass clumps in Early Stages (ASHES). I. Pilot Survey: Clump Fragmentation","version":1},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1909.07985","snapshot_observed_at":"2026-08-08T12:54:38.257399Z","title":null,"venue":null,"work_id":null,"year":1909},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":91,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.257399Z"},"links":{"cited_paper":"/paper/1909.07985","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:0305cef855b75c0c98456943f642db3110f8e11f4fb4ff4076698d83df7c8b1d","observation_id":"4ab63e7a-6214-4a29-94b2-a3de009e75f6","resolution":{"observed_at":"2026-08-08T12:54:38.257399Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"1509.05749","last_updated":"2015-12-16T10:43:20Z","snapshot_observed_at":"2026-07-06T04:30:23.288585Z","submitted_at":"2015-09-18T19:03:48Z","title":"Young Stellar Objects in the Massive Star Forming Region W49","version":3},"cited_work":{"arxiv_id":"1509.05749","doi":null,"metadata_source":"pith","pith_arxiv_id":"1509.05749","snapshot_observed_at":"2026-08-08T12:54:39.315128Z","title":"Young Stellar Objects in the Massive Star Forming Region W49","venue":"astro-ph.SR","work_id":"b13c27cd-d6e0-4fb6-ad6e-1b989c498602","year":2015},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":92,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.262116Z"},"links":{"cited_paper":"/paper/1509.05749","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:51b5db2afd2d6064cfbf7353e32c538ce63a579f1b60b2699c2dd041cf5b66e1","observation_id":"d444c5fd-92d1-47cd-a201-6d8b4b70639f","resolution":{"observed_at":"2026-08-08T12:54:39.320117Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.267115Z","title":"The Astrophysical Journal , year = 1955, month = jan, volume =","venue":null,"work_id":null,"year":1955},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":93,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.267115Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:8c819c07d2a1408b5e6361de328ae4ef8a3e0851b9ba8697977e4a56e816344f","observation_id":"c4534ebc-3a5e-4d36-846f-5447c4667bbb","resolution":{"observed_at":"2026-08-08T12:54:38.267115Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.271842Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":94,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.271842Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:78ab82b86ac7485d11533e52172447095343b3096f9d6c071a9d727fbadc8a3a","observation_id":"7b92f046-9da6-4972-b3ec-ed74d040768b","resolution":{"observed_at":"2026-08-08T12:54:38.271842Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.276316Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":95,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.276316Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:b0688286ba73d5d67aa990d22ce41718006a04564c78e54ea9824e0f8090e594","observation_id":"aa0ca091-eb6d-4c4e-9932-cd0c27c5c7e1","resolution":{"observed_at":"2026-08-08T12:54:38.276316Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":"2107.14288","doi":null,"metadata_source":"arxiv_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:39.292140Z","title":", keywords =","venue":null,"work_id":"69ce094d-5b58-4dec-bfee-0f5115828f76","year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":96,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.280789Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:78e44c970507b816fb471793638655e2ef7bd1bb0198f587c409646188893819","observation_id":"feb5f416-5850-42fc-9ec2-59286a9e701a","resolution":{"observed_at":"2026-08-08T12:54:39.299553Z","resolver_source":"arxiv_id","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"astro-ph/0410604","last_updated":"2004-10-25T17:57:00Z","snapshot_observed_at":"2026-07-07T00:45:35.733863Z","submitted_at":"2004-10-25T17:57:00Z","title":"Spherical Infall in G10.6-0.4: Accretion Through an Ultracompact HII Region","version":1},"cited_work":{"arxiv_id":"astro-ph/0410604","doi":null,"metadata_source":"pith","pith_arxiv_id":"astro-ph/0410604","snapshot_observed_at":"2026-08-08T12:54:39.126727Z","title":"Spherical Infall in G10.6-0.4: Accretion Through an Ultracompact HII Region","venue":"astro-ph","work_id":"4df9f093-e45c-4d7a-a119-759c64ff2561","year":2004},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":97,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.285195Z"},"links":{"cited_paper":"/paper/astro-ph/0410604","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:9518f97bc323863be56c4d0d182471c1f20d9ec705e834c689de1658b0d74e4f","observation_id":"40203a38-3704-45ce-9c1d-59054b6891c3","resolution":{"observed_at":"2026-08-08T12:54:39.132459Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1509.06754","last_updated":"2015-12-21T18:18:54Z","snapshot_observed_at":"2026-07-06T04:30:44.067910Z","submitted_at":"2015-09-22T20:19:18Z","title":"Outflow-Confined H II Regions. I. First Signposts of Massive Star Formation","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1509.06754","snapshot_observed_at":"2026-08-08T12:54:38.289882Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":98,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.289882Z"},"links":{"cited_paper":"/paper/1509.06754","citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:299d3b462c30ce0287bccee7d67498e2772de2d7da4b1a3db7686a9c2c46658f","observation_id":"c10c9374-98f8-4c34-9078-facd37db0e1b","resolution":{"observed_at":"2026-08-08T12:54:38.289882Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.294745Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":99,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.294745Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:c9a4d74905434deb491df4864e6a1972ed1c545fbaf8f5b9592e9940b616274d","observation_id":"8ac73337-db67-4c84-9c0c-a900591d8a08","resolution":{"observed_at":"2026-08-08T12:54:38.294745Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-08T12:54:38.299220Z","title":", keywords =","venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations","version":1},"reference_index":100,"source":"arxiv_source","source_observed_at":"2026-08-08T12:54:38.299220Z"},"links":{"citing_paper":"/paper/2608.05453"},"observation_digest":"sha256:370d0a1f46dc8bdaa6ebb4a8a42315ae7f72ec733720cb895b53516520ee2015","observation_id":"bed0e06f-394c-4728-9a4d-3f1ce5dadc50","resolution":{"observed_at":"2026-08-08T12:54:38.299220Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}}],"paper":{"arxiv_id":"2608.05453","last_updated":"2026-08-05T22:56:49Z","latest_version":1,"primary_category":"astro-ph.GA","snapshot_observed_at":"2026-08-09T09:03:38.841969Z","submitted_at":"2026-08-05T22:56:49Z","title":"The Zero-Age Massive Stellar Population of W49A from VLA Observations"},"reference_resolution":{"displayed":100,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":65,"verified_exact":35,"verified_fuzzy":0},"total_outbound_references":110},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-09T06:31:02.800959+00:00","source":"crossref"},{"observed_at":"2026-08-09T06:30:57.326959+00:00","source":"retraction_watch"}],"thesis":"As of 9 August 2026, this Paper Citation Record lists 100 of 110 outbound references and 0 inbound Pith citation observations for arXiv:2608.05453."}