{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:PK2IAXLH3XUDNE7VTUZKP3CLBR","short_pith_number":"pith:PK2IAXLH","schema_version":"1.0","canonical_sha256":"7ab4805d67dde83693f59d32a7ec4b0c57c026529c78963775b2853799cbfe3b","source":{"kind":"arxiv","id":"1707.05107","version":2},"attestation_state":"computed","paper":{"title":"Asymmetric Type-Ia supernova origin of W49B as revealed from spatially resolved X-ray spectroscopic study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Jacco Vink, Ping Zhou","submitted_at":"2017-07-17T11:37:06Z","abstract_excerpt":"The origin of the asymmetric supernova remnant (SNR) W49B has been a matter of debate: is it produced by a rare jet-driven core-collapse supernova, or by a normal supernova that is strongly shaped by its dense environment? Aiming to uncover the explosion mechanism and origin of the asymmetric, centrally filled X-ray morphology of W49B, we have performed spatially resolved X-ray spectroscopy and a search for potential point sources. We report new candidate point sources inside W49B. The Chandra X-ray spectra from W49B are well-characterized by two-temperature gas components ($\\sim 0.27$ keV + 0"},"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":"1707.05107","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-07-17T11:37:06Z","cross_cats_sorted":[],"title_canon_sha256":"3d4ca23923f85ab67d1d0612a2f1d9f11fffb06a051725c4ffff8894ace83d0d","abstract_canon_sha256":"51dcf86f1530664197bdf678c41948bb6be332e436ef8a031f6e3cee652098e6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:20.158495Z","signature_b64":"euFdqvRA4Dn7/r7ntzKY80H94SuFxcCk8t04n2CtDeZNCT/iPuLdZui7dBRc5SgjLJ1FdfyfdbVqezpRNxu4Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ab4805d67dde83693f59d32a7ec4b0c57c026529c78963775b2853799cbfe3b","last_reissued_at":"2026-05-18T00:09:20.157703Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:20.157703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Asymmetric Type-Ia supernova origin of W49B as revealed from spatially resolved X-ray spectroscopic study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Jacco Vink, Ping Zhou","submitted_at":"2017-07-17T11:37:06Z","abstract_excerpt":"The origin of the asymmetric supernova remnant (SNR) W49B has been a matter of debate: is it produced by a rare jet-driven core-collapse supernova, or by a normal supernova that is strongly shaped by its dense environment? Aiming to uncover the explosion mechanism and origin of the asymmetric, centrally filled X-ray morphology of W49B, we have performed spatially resolved X-ray spectroscopy and a search for potential point sources. We report new candidate point sources inside W49B. The Chandra X-ray spectra from W49B are well-characterized by two-temperature gas components ($\\sim 0.27$ keV + 0"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.05107","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":"1707.05107","created_at":"2026-05-18T00:09:20.157853+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.05107v2","created_at":"2026-05-18T00:09:20.157853+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.05107","created_at":"2026-05-18T00:09:20.157853+00:00"},{"alias_kind":"pith_short_12","alias_value":"PK2IAXLH3XUD","created_at":"2026-05-18T12:31:37.085036+00:00"},{"alias_kind":"pith_short_16","alias_value":"PK2IAXLH3XUDNE7V","created_at":"2026-05-18T12:31:37.085036+00:00"},{"alias_kind":"pith_short_8","alias_value":"PK2IAXLH","created_at":"2026-05-18T12:31:37.085036+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/PK2IAXLH3XUDNE7VTUZKP3CLBR","json":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR.json","graph_json":"https://pith.science/api/pith-number/PK2IAXLH3XUDNE7VTUZKP3CLBR/graph.json","events_json":"https://pith.science/api/pith-number/PK2IAXLH3XUDNE7VTUZKP3CLBR/events.json","paper":"https://pith.science/paper/PK2IAXLH"},"agent_actions":{"view_html":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR","download_json":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR.json","view_paper":"https://pith.science/paper/PK2IAXLH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.05107&json=true","fetch_graph":"https://pith.science/api/pith-number/PK2IAXLH3XUDNE7VTUZKP3CLBR/graph.json","fetch_events":"https://pith.science/api/pith-number/PK2IAXLH3XUDNE7VTUZKP3CLBR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR/action/storage_attestation","attest_author":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR/action/author_attestation","sign_citation":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR/action/citation_signature","submit_replication":"https://pith.science/pith/PK2IAXLH3XUDNE7VTUZKP3CLBR/action/replication_record"}},"created_at":"2026-05-18T00:09:20.157853+00:00","updated_at":"2026-05-18T00:09:20.157853+00:00"}