{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:HOBJF3HDX4DMPCAQDW7ZELJFXI","short_pith_number":"pith:HOBJF3HD","schema_version":"1.0","canonical_sha256":"3b8292ece3bf06c788101dbf922d25ba10abe48fa7f9b2fe882cf981d7bf7491","source":{"kind":"arxiv","id":"1603.09637","version":3},"attestation_state":"computed","paper":{"title":"High-Resolution Mapping of Dust via Extinction in the M31 Bulge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Abhijit Saha (NOAO), Amherst, Brent A. Groves (MPIA), Hui Dong (IAA-CSIC, Julianne J. Dalcanton (University of Washington, Knut A. G. Olsen (NOAO), Nanjing University), NOAO), Q. D. Wang (Umass, Seattle), Tod R. Lauer (NOAO), Zhiyuan Li (Nanjing University)","submitted_at":"2016-03-31T15:27:39Z","abstract_excerpt":"We map the dust distribution in the central 180\" (~680 pc) region of the M31 bulge, based on HST/WFC3 and ACS observations in ten bands from near-ultraviolet (2700 A) to near-infrared (1.5 micron). This large wavelength coverage gives us great leverage to detect not only dense dusty clumps, but also diffuse dusty molecular gas. We fit a pixel-by-pixel spectral energy distributions to construct a high-dynamic-range extinction map with unparalleled angular resolution (~0.5\" , i.e., ~2 pc) and sensitivity (the extinction uncertainty, \\delta A_V~0.05). In particular, the data allow to directly fit"},"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":"1603.09637","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-03-31T15:27:39Z","cross_cats_sorted":[],"title_canon_sha256":"ee30e1464c65d5f5c9cfa6cc65fb1ceb109e457a75c111723cb26171c5aa8c59","abstract_canon_sha256":"14e274f85acb633b047aab0c4d0a05b9fc246ccea2925a0563ba7156c852de15"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:39.204493Z","signature_b64":"dXp/GJ0l0UFpbSyDh2reAqIl5yX4c7l56kwka24IrB9velJDChmY59bxF2dq2N4d3R5GCLQ4EcmrZSmWaILLCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3b8292ece3bf06c788101dbf922d25ba10abe48fa7f9b2fe882cf981d7bf7491","last_reissued_at":"2026-05-18T01:16:39.202802Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:39.202802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-Resolution Mapping of Dust via Extinction in the M31 Bulge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Abhijit Saha (NOAO), Amherst, Brent A. Groves (MPIA), Hui Dong (IAA-CSIC, Julianne J. Dalcanton (University of Washington, Knut A. G. Olsen (NOAO), Nanjing University), NOAO), Q. D. Wang (Umass, Seattle), Tod R. Lauer (NOAO), Zhiyuan Li (Nanjing University)","submitted_at":"2016-03-31T15:27:39Z","abstract_excerpt":"We map the dust distribution in the central 180\" (~680 pc) region of the M31 bulge, based on HST/WFC3 and ACS observations in ten bands from near-ultraviolet (2700 A) to near-infrared (1.5 micron). This large wavelength coverage gives us great leverage to detect not only dense dusty clumps, but also diffuse dusty molecular gas. We fit a pixel-by-pixel spectral energy distributions to construct a high-dynamic-range extinction map with unparalleled angular resolution (~0.5\" , i.e., ~2 pc) and sensitivity (the extinction uncertainty, \\delta A_V~0.05). In particular, the data allow to directly fit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.09637","kind":"arxiv","version":3},"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":"1603.09637","created_at":"2026-05-18T01:16:39.202928+00:00"},{"alias_kind":"arxiv_version","alias_value":"1603.09637v3","created_at":"2026-05-18T01:16:39.202928+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.09637","created_at":"2026-05-18T01:16:39.202928+00:00"},{"alias_kind":"pith_short_12","alias_value":"HOBJF3HDX4DM","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_16","alias_value":"HOBJF3HDX4DMPCAQ","created_at":"2026-05-18T12:30:19.053100+00:00"},{"alias_kind":"pith_short_8","alias_value":"HOBJF3HD","created_at":"2026-05-18T12:30:19.053100+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/HOBJF3HDX4DMPCAQDW7ZELJFXI","json":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI.json","graph_json":"https://pith.science/api/pith-number/HOBJF3HDX4DMPCAQDW7ZELJFXI/graph.json","events_json":"https://pith.science/api/pith-number/HOBJF3HDX4DMPCAQDW7ZELJFXI/events.json","paper":"https://pith.science/paper/HOBJF3HD"},"agent_actions":{"view_html":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI","download_json":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI.json","view_paper":"https://pith.science/paper/HOBJF3HD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1603.09637&json=true","fetch_graph":"https://pith.science/api/pith-number/HOBJF3HDX4DMPCAQDW7ZELJFXI/graph.json","fetch_events":"https://pith.science/api/pith-number/HOBJF3HDX4DMPCAQDW7ZELJFXI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI/action/storage_attestation","attest_author":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI/action/author_attestation","sign_citation":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI/action/citation_signature","submit_replication":"https://pith.science/pith/HOBJF3HDX4DMPCAQDW7ZELJFXI/action/replication_record"}},"created_at":"2026-05-18T01:16:39.202928+00:00","updated_at":"2026-05-18T01:16:39.202928+00:00"}