{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:MNGURQASO7KNCUXM3QLFNM24KQ","short_pith_number":"pith:MNGURQAS","schema_version":"1.0","canonical_sha256":"634d48c01277d4d152ecdc1656b35c54012b157cb8fce603e654a6aae119e9e2","source":{"kind":"arxiv","id":"1304.6520","version":1},"attestation_state":"computed","paper":{"title":"The Mysterious Sickle Object in the Carina Nebula: A stellar wind induced bow shock grazing a clump?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andreas Burkert, Judith Ngoumou, Thomas Preibisch, Thorsten Ratzka","submitted_at":"2013-04-24T09:14:38Z","abstract_excerpt":"Optical and near-infrared images of the Carina Nebula show a peculiar arc-shaped feature, which we call the \"Sickle\", next to the B-type star Trumpler 14 MJ 218. We use multi-wavelength observations to explore and constrain the nature and origin of the nebulosity. Using sub-mm data from APEX/LABOCA as well as Herschel far-infrared maps, we discovered a dense, compact clump with a mass of ~ 40 Msun located close to the apex of the Sickle. We investigate how the B-star MJ 218, the Sickle, and the clump are related. Our numerical simulations show that, in principle, a B-type star located near the"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1304.6520","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-04-24T09:14:38Z","cross_cats_sorted":[],"title_canon_sha256":"4da7cf6cc05bba6b83e2d5f501550233aeb528c4dc835918e9cc58a72a51d1ae","abstract_canon_sha256":"af333f1e5ed9df7e8939ec3648351793674c70acb2bc331a4fedaddd42dced67"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:22.660989Z","signature_b64":"UPM+W8HjFIZTTvh8ZICh7G9DMgrMWMQzFiYCm1QcUdxI/4NvAqkY5IDwkwiXIZT/fOo7cOnq/k/Q22JlFI9bCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"634d48c01277d4d152ecdc1656b35c54012b157cb8fce603e654a6aae119e9e2","last_reissued_at":"2026-05-18T01:50:22.660190Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:22.660190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Mysterious Sickle Object in the Carina Nebula: A stellar wind induced bow shock grazing a clump?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andreas Burkert, Judith Ngoumou, Thomas Preibisch, Thorsten Ratzka","submitted_at":"2013-04-24T09:14:38Z","abstract_excerpt":"Optical and near-infrared images of the Carina Nebula show a peculiar arc-shaped feature, which we call the \"Sickle\", next to the B-type star Trumpler 14 MJ 218. We use multi-wavelength observations to explore and constrain the nature and origin of the nebulosity. Using sub-mm data from APEX/LABOCA as well as Herschel far-infrared maps, we discovered a dense, compact clump with a mass of ~ 40 Msun located close to the apex of the Sickle. We investigate how the B-star MJ 218, the Sickle, and the clump are related. Our numerical simulations show that, in principle, a B-type star located near the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6520","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1304.6520","created_at":"2026-05-18T01:50:22.660327+00:00"},{"alias_kind":"arxiv_version","alias_value":"1304.6520v1","created_at":"2026-05-18T01:50:22.660327+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6520","created_at":"2026-05-18T01:50:22.660327+00:00"},{"alias_kind":"pith_short_12","alias_value":"MNGURQASO7KN","created_at":"2026-05-18T12:27:52.871228+00:00"},{"alias_kind":"pith_short_16","alias_value":"MNGURQASO7KNCUXM","created_at":"2026-05-18T12:27:52.871228+00:00"},{"alias_kind":"pith_short_8","alias_value":"MNGURQAS","created_at":"2026-05-18T12:27:52.871228+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ","json":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ.json","graph_json":"https://pith.science/api/pith-number/MNGURQASO7KNCUXM3QLFNM24KQ/graph.json","events_json":"https://pith.science/api/pith-number/MNGURQASO7KNCUXM3QLFNM24KQ/events.json","paper":"https://pith.science/paper/MNGURQAS"},"agent_actions":{"view_html":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ","download_json":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ.json","view_paper":"https://pith.science/paper/MNGURQAS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1304.6520&json=true","fetch_graph":"https://pith.science/api/pith-number/MNGURQASO7KNCUXM3QLFNM24KQ/graph.json","fetch_events":"https://pith.science/api/pith-number/MNGURQASO7KNCUXM3QLFNM24KQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ/action/storage_attestation","attest_author":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ/action/author_attestation","sign_citation":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ/action/citation_signature","submit_replication":"https://pith.science/pith/MNGURQASO7KNCUXM3QLFNM24KQ/action/replication_record"}},"created_at":"2026-05-18T01:50:22.660327+00:00","updated_at":"2026-05-18T01:50:22.660327+00:00"}