{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:MLZ4GIKFXPCJEGW733M5JWHUT5","short_pith_number":"pith:MLZ4GIKF","schema_version":"1.0","canonical_sha256":"62f3c32145bbc4921adfded9d4d8f49f700c64ebc04dc14292e5c1fb919a6889","source":{"kind":"arxiv","id":"1004.4132","version":1},"attestation_state":"computed","paper":{"title":"Discovery of X-Ray-Emitting O-Ne-Mg-Rich Ejecta in the Galactic Supernova Remnant Puppis A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"2), 2 JHU, 3 PSU, 4 Miyazaki U., 5 Osaka U.), Hiroshi Tsunemi (5) (1 NASA/GSFC, Koji Mori (4), Robert Petre (1), Sangwook Park (3), Satoru Katsuda (1), Una Hwang (1","submitted_at":"2010-04-23T13:41:03Z","abstract_excerpt":"We report on the discovery of X-ray--emitting O-Ne-Mg-rich ejecta in the middle-aged Galactic O-rich supernova remnant Puppis A with Chandra and XMM-Newton.  We use line ratios to identify a low-ionization filament running parallel to the northeastern edge of the remnant that requires supersolar abundances, particularly for O, Ne, and Mg, which we interpret to be from O-Ne-Mg-rich ejecta.  Abundance ratios of Ne/O, Mg/O, and Fe/O are measured to be ~2, ~2, and <0.3 times the solar values.  Our spatially-resolved spectral analysis from the northeastern rim to the western rim otherwise reveals s"},"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":"1004.4132","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-04-23T13:41:03Z","cross_cats_sorted":[],"title_canon_sha256":"64902730a4510ffce6ca675d4618f835f941936c93caef342f19e7b40ff01ad1","abstract_canon_sha256":"b26632ff43019c37c7d25ceb2d60b3ce55af9e533cc33508738b3623eb6e3fe0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:54.623478Z","signature_b64":"zJKYxd5KdKrilS9JyiFFGmKYvDGm/wsaRKcMDPSooU3j0ycOEhPvb3c9QiVCpysBWFL+PAQ1mfKnIEsnHK0VBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"62f3c32145bbc4921adfded9d4d8f49f700c64ebc04dc14292e5c1fb919a6889","last_reissued_at":"2026-05-18T02:07:54.622683Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:54.622683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discovery of X-Ray-Emitting O-Ne-Mg-Rich Ejecta in the Galactic Supernova Remnant Puppis A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"2), 2 JHU, 3 PSU, 4 Miyazaki U., 5 Osaka U.), Hiroshi Tsunemi (5) (1 NASA/GSFC, Koji Mori (4), Robert Petre (1), Sangwook Park (3), Satoru Katsuda (1), Una Hwang (1","submitted_at":"2010-04-23T13:41:03Z","abstract_excerpt":"We report on the discovery of X-ray--emitting O-Ne-Mg-rich ejecta in the middle-aged Galactic O-rich supernova remnant Puppis A with Chandra and XMM-Newton.  We use line ratios to identify a low-ionization filament running parallel to the northeastern edge of the remnant that requires supersolar abundances, particularly for O, Ne, and Mg, which we interpret to be from O-Ne-Mg-rich ejecta.  Abundance ratios of Ne/O, Mg/O, and Fe/O are measured to be ~2, ~2, and <0.3 times the solar values.  Our spatially-resolved spectral analysis from the northeastern rim to the western rim otherwise reveals s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.4132","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":"1004.4132","created_at":"2026-05-18T02:07:54.622822+00:00"},{"alias_kind":"arxiv_version","alias_value":"1004.4132v1","created_at":"2026-05-18T02:07:54.622822+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.4132","created_at":"2026-05-18T02:07:54.622822+00:00"},{"alias_kind":"pith_short_12","alias_value":"MLZ4GIKFXPCJ","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_16","alias_value":"MLZ4GIKFXPCJEGW7","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_8","alias_value":"MLZ4GIKF","created_at":"2026-05-18T12:26:10.704358+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/MLZ4GIKFXPCJEGW733M5JWHUT5","json":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5.json","graph_json":"https://pith.science/api/pith-number/MLZ4GIKFXPCJEGW733M5JWHUT5/graph.json","events_json":"https://pith.science/api/pith-number/MLZ4GIKFXPCJEGW733M5JWHUT5/events.json","paper":"https://pith.science/paper/MLZ4GIKF"},"agent_actions":{"view_html":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5","download_json":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5.json","view_paper":"https://pith.science/paper/MLZ4GIKF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1004.4132&json=true","fetch_graph":"https://pith.science/api/pith-number/MLZ4GIKFXPCJEGW733M5JWHUT5/graph.json","fetch_events":"https://pith.science/api/pith-number/MLZ4GIKFXPCJEGW733M5JWHUT5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5/action/storage_attestation","attest_author":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5/action/author_attestation","sign_citation":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5/action/citation_signature","submit_replication":"https://pith.science/pith/MLZ4GIKFXPCJEGW733M5JWHUT5/action/replication_record"}},"created_at":"2026-05-18T02:07:54.622822+00:00","updated_at":"2026-05-18T02:07:54.622822+00:00"}