{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:DASPH25B3JBMV37ASUQ6IRLSQE","short_pith_number":"pith:DASPH25B","schema_version":"1.0","canonical_sha256":"1824f3eba1da42caefe09521e4457281156ea47d41b41749748282d8a2cb8cdc","source":{"kind":"arxiv","id":"1610.02458","version":2},"attestation_state":"computed","paper":{"title":"Interstellar-Medium Mapping in M82 Through Light Echoes Around Supernova 2014J","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"2), (2) PMO, (3) ESO, (4) STSCI, (5) Florida State University, (6) University of Sheffield, (7) Tsinghua University, (8) University of Texas at Austin), Dietrich Baade (3), Ferdinando Patat (3), Heloise F. Stevance (6), Jason Spyromilio (3), J. Craig Wheeler (8) ((1) Texas A, Justyn Maund (6), Lifan Wang (1, Misty Cracraft (4), M University, Peter A. Hoflich (5), Peter J. Brown (1), William B. Sparks (4), Xiaofeng Wang (7), Yi Yang (1)","submitted_at":"2016-10-08T01:13:37Z","abstract_excerpt":"We present multiple-epoch measurements of the size and surface brightness of the light echoes from supernova (SN) 2014J in the nearby starburst galaxy M82. Hubble Space Telescope (HST) ACS/WFC images were taken ~277 and ~416 days after B-band maximum in the filters F475W, F606W, and F775W. Observations with HST WFC3/UVIS images at epochs ~216 and ~365 days (Crotts 2015) are included for a more complete analysis. The images reveal the temporal evolution of at least two major light-echo components. The first one exhibits a filled ring structure with position-angle-dependent intensity. This radia"},"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":"1610.02458","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-08T01:13:37Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"title_canon_sha256":"6a9605e6c3f7eceaf7850a7fa226f47ad67dda66fae5a1ee6d6054ab84867888","abstract_canon_sha256":"93b2699267428270fec072803130716035d96f0acd8445afa099137e12ad3c7e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:07.248197Z","signature_b64":"5Q363q7O+ReAxJLIYvBBkUhiphP3sVsCVYfy3YH3C7l7m5BTj9Vk+r1y3jZbnz3auOJ0E97mMid4eh6f1GjRCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1824f3eba1da42caefe09521e4457281156ea47d41b41749748282d8a2cb8cdc","last_reissued_at":"2026-05-18T00:53:07.247788Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:07.247788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Interstellar-Medium Mapping in M82 Through Light Echoes Around Supernova 2014J","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"2), (2) PMO, (3) ESO, (4) STSCI, (5) Florida State University, (6) University of Sheffield, (7) Tsinghua University, (8) University of Texas at Austin), Dietrich Baade (3), Ferdinando Patat (3), Heloise F. Stevance (6), Jason Spyromilio (3), J. Craig Wheeler (8) ((1) Texas A, Justyn Maund (6), Lifan Wang (1, Misty Cracraft (4), M University, Peter A. Hoflich (5), Peter J. Brown (1), William B. Sparks (4), Xiaofeng Wang (7), Yi Yang (1)","submitted_at":"2016-10-08T01:13:37Z","abstract_excerpt":"We present multiple-epoch measurements of the size and surface brightness of the light echoes from supernova (SN) 2014J in the nearby starburst galaxy M82. Hubble Space Telescope (HST) ACS/WFC images were taken ~277 and ~416 days after B-band maximum in the filters F475W, F606W, and F775W. Observations with HST WFC3/UVIS images at epochs ~216 and ~365 days (Crotts 2015) are included for a more complete analysis. The images reveal the temporal evolution of at least two major light-echo components. The first one exhibits a filled ring structure with position-angle-dependent intensity. This radia"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.02458","kind":"arxiv","version":2},"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":"1610.02458","created_at":"2026-05-18T00:53:07.247860+00:00"},{"alias_kind":"arxiv_version","alias_value":"1610.02458v2","created_at":"2026-05-18T00:53:07.247860+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.02458","created_at":"2026-05-18T00:53:07.247860+00:00"},{"alias_kind":"pith_short_12","alias_value":"DASPH25B3JBM","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_16","alias_value":"DASPH25B3JBMV37A","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_8","alias_value":"DASPH25B","created_at":"2026-05-18T12:30:09.641336+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/DASPH25B3JBMV37ASUQ6IRLSQE","json":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE.json","graph_json":"https://pith.science/api/pith-number/DASPH25B3JBMV37ASUQ6IRLSQE/graph.json","events_json":"https://pith.science/api/pith-number/DASPH25B3JBMV37ASUQ6IRLSQE/events.json","paper":"https://pith.science/paper/DASPH25B"},"agent_actions":{"view_html":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE","download_json":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE.json","view_paper":"https://pith.science/paper/DASPH25B","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1610.02458&json=true","fetch_graph":"https://pith.science/api/pith-number/DASPH25B3JBMV37ASUQ6IRLSQE/graph.json","fetch_events":"https://pith.science/api/pith-number/DASPH25B3JBMV37ASUQ6IRLSQE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE/action/storage_attestation","attest_author":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE/action/author_attestation","sign_citation":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE/action/citation_signature","submit_replication":"https://pith.science/pith/DASPH25B3JBMV37ASUQ6IRLSQE/action/replication_record"}},"created_at":"2026-05-18T00:53:07.247860+00:00","updated_at":"2026-05-18T00:53:07.247860+00:00"}