{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:HPEGVSXCTYXEPBXDZHOXZ3DFXN","short_pith_number":"pith:HPEGVSXC","schema_version":"1.0","canonical_sha256":"3bc86acae29e2e4786e3c9dd7cec65bb5df0a72f3853406036a816dcd6c7fb5e","source":{"kind":"arxiv","id":"astro-ph/0401135","version":1},"attestation_state":"computed","paper":{"title":"Modulations in the radio light curve of the Type IIb Supernova 2001ig: Evidence for a Wolf-Rayet binary progenitor?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"4) ((1) AAO (2) U. Sydney (3) ATNF (4) NRL (5) ESA/STScI (6) Marquette Univ.), Christopher Stockdale (6, Elaine M. Sadler (2), Kurt W. Weiler (4), Nino Panagia (5), Ravi Subrahmanyan (3), Stuart D. Ryder (1)","submitted_at":"2004-01-08T22:11:22Z","abstract_excerpt":"We describe the radio evolution of SN 2001ig in NGC 7424, from 700 days of multi-frequency monitoring with the Australia Telescope Compact Array (ATCA) and the Very Large Array (VLA). We find that deviations of the radio light curves at each frequency from the standard \"minishell\" model are consistent with density modulations in the circumstellar medium (CSM), which seem to recur with a period near 150 days. One possibility is that these are due to enhanced mass-loss from thermal pulses in an AGB star progenitor. A more likely scenario however is that the progenitor was a Wolf-Rayet star, whos"},"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":"astro-ph/0401135","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-01-08T22:11:22Z","cross_cats_sorted":[],"title_canon_sha256":"6172ff5eb40411ebfef934b9379acd45b2ed1ddefe8b8fbe65d5be1a19da72d1","abstract_canon_sha256":"4a07bc862b4d1e954bd2f1982e17743696adb54307d523224cce5b5247b34c1a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:27:04.702534Z","signature_b64":"NtPRtHLZ2jnr0XSFPygQHoCVzqiyYcPah4xwGFpaDdZXAGT0QCaXhj3Ktex1gsUWaClapbNq3Qk0wrsz81r0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3bc86acae29e2e4786e3c9dd7cec65bb5df0a72f3853406036a816dcd6c7fb5e","last_reissued_at":"2026-05-18T04:27:04.701948Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:27:04.701948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Modulations in the radio light curve of the Type IIb Supernova 2001ig: Evidence for a Wolf-Rayet binary progenitor?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"4) ((1) AAO (2) U. Sydney (3) ATNF (4) NRL (5) ESA/STScI (6) Marquette Univ.), Christopher Stockdale (6, Elaine M. Sadler (2), Kurt W. Weiler (4), Nino Panagia (5), Ravi Subrahmanyan (3), Stuart D. Ryder (1)","submitted_at":"2004-01-08T22:11:22Z","abstract_excerpt":"We describe the radio evolution of SN 2001ig in NGC 7424, from 700 days of multi-frequency monitoring with the Australia Telescope Compact Array (ATCA) and the Very Large Array (VLA). We find that deviations of the radio light curves at each frequency from the standard \"minishell\" model are consistent with density modulations in the circumstellar medium (CSM), which seem to recur with a period near 150 days. One possibility is that these are due to enhanced mass-loss from thermal pulses in an AGB star progenitor. A more likely scenario however is that the progenitor was a Wolf-Rayet star, whos"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0401135","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":"astro-ph/0401135","created_at":"2026-05-18T04:27:04.702040+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0401135v1","created_at":"2026-05-18T04:27:04.702040+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0401135","created_at":"2026-05-18T04:27:04.702040+00:00"},{"alias_kind":"pith_short_12","alias_value":"HPEGVSXCTYXE","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_16","alias_value":"HPEGVSXCTYXEPBXD","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_8","alias_value":"HPEGVSXC","created_at":"2026-05-18T12:25:52.687210+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/HPEGVSXCTYXEPBXDZHOXZ3DFXN","json":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN.json","graph_json":"https://pith.science/api/pith-number/HPEGVSXCTYXEPBXDZHOXZ3DFXN/graph.json","events_json":"https://pith.science/api/pith-number/HPEGVSXCTYXEPBXDZHOXZ3DFXN/events.json","paper":"https://pith.science/paper/HPEGVSXC"},"agent_actions":{"view_html":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN","download_json":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN.json","view_paper":"https://pith.science/paper/HPEGVSXC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0401135&json=true","fetch_graph":"https://pith.science/api/pith-number/HPEGVSXCTYXEPBXDZHOXZ3DFXN/graph.json","fetch_events":"https://pith.science/api/pith-number/HPEGVSXCTYXEPBXDZHOXZ3DFXN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN/action/storage_attestation","attest_author":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN/action/author_attestation","sign_citation":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN/action/citation_signature","submit_replication":"https://pith.science/pith/HPEGVSXCTYXEPBXDZHOXZ3DFXN/action/replication_record"}},"created_at":"2026-05-18T04:27:04.702040+00:00","updated_at":"2026-05-18T04:27:04.702040+00:00"}