{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:VJECJU7DB2LHJYTIZ5VCJSEGSX","short_pith_number":"pith:VJECJU7D","schema_version":"1.0","canonical_sha256":"aa4824d3e30e9674e268cf6a24c88695faf15b87338dcf0284b40cf91a598afb","source":{"kind":"arxiv","id":"0908.2613","version":1},"attestation_state":"computed","paper":{"title":"Dense Iron Ejecta and Core-collapse Supernova Explosion in the Young Supernova Remnant G11.2-0.3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Bon-Chul Koo, Dae-Sik Moon, Ho-Gyu Lee, Jae-Joon Lee, Ji Yeon Seok, Keith Matthews, Masahiko Hayashi, Tae-Soo Pyo","submitted_at":"2009-08-18T19:18:36Z","abstract_excerpt":"We present the results of near-infrared spectroscopic observations of dense ($\\simgt$ 10$^3$ cm$^{-3}$) iron ejecta in the young core-collapse supernova remnant G11.2-0.3. Five ejecta knots projected to be close to its center show a large dispersion in their Doppler shifts: two knots in the east are blueshifted by more than 1,000 \\kms, while three western knots have relatively small blueshifts of 20-60 \\kms. This velocity discrepancy may indicate that the western knots have been significantly decelerated or that there exists a systematic velocity difference among the knots. One ejecta filament"},"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":"0908.2613","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-18T19:18:36Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4a231dca8267d725790c4bc619100279e3c5ad6d500f184d218ed94d11121830","abstract_canon_sha256":"4fa1df81cad2ec36c5d754fdca7dedecd42f499b58d7b23a37d4ebf8afeae2ee"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:25.492589Z","signature_b64":"8fa5L4fF/e3byGDfWb8IdCRsdvzrM5yX6pAhm0XRk1T4O4FJwZpenlzclI5YtCUaXQLfFk6/x5TSiS/dC3dnAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa4824d3e30e9674e268cf6a24c88695faf15b87338dcf0284b40cf91a598afb","last_reissued_at":"2026-05-18T02:12:25.491764Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:25.491764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dense Iron Ejecta and Core-collapse Supernova Explosion in the Young Supernova Remnant G11.2-0.3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Bon-Chul Koo, Dae-Sik Moon, Ho-Gyu Lee, Jae-Joon Lee, Ji Yeon Seok, Keith Matthews, Masahiko Hayashi, Tae-Soo Pyo","submitted_at":"2009-08-18T19:18:36Z","abstract_excerpt":"We present the results of near-infrared spectroscopic observations of dense ($\\simgt$ 10$^3$ cm$^{-3}$) iron ejecta in the young core-collapse supernova remnant G11.2-0.3. Five ejecta knots projected to be close to its center show a large dispersion in their Doppler shifts: two knots in the east are blueshifted by more than 1,000 \\kms, while three western knots have relatively small blueshifts of 20-60 \\kms. This velocity discrepancy may indicate that the western knots have been significantly decelerated or that there exists a systematic velocity difference among the knots. One ejecta filament"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.2613","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":"0908.2613","created_at":"2026-05-18T02:12:25.491914+00:00"},{"alias_kind":"arxiv_version","alias_value":"0908.2613v1","created_at":"2026-05-18T02:12:25.491914+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.2613","created_at":"2026-05-18T02:12:25.491914+00:00"},{"alias_kind":"pith_short_12","alias_value":"VJECJU7DB2LH","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_16","alias_value":"VJECJU7DB2LHJYTI","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_8","alias_value":"VJECJU7D","created_at":"2026-05-18T12:26:02.257875+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/VJECJU7DB2LHJYTIZ5VCJSEGSX","json":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX.json","graph_json":"https://pith.science/api/pith-number/VJECJU7DB2LHJYTIZ5VCJSEGSX/graph.json","events_json":"https://pith.science/api/pith-number/VJECJU7DB2LHJYTIZ5VCJSEGSX/events.json","paper":"https://pith.science/paper/VJECJU7D"},"agent_actions":{"view_html":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX","download_json":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX.json","view_paper":"https://pith.science/paper/VJECJU7D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0908.2613&json=true","fetch_graph":"https://pith.science/api/pith-number/VJECJU7DB2LHJYTIZ5VCJSEGSX/graph.json","fetch_events":"https://pith.science/api/pith-number/VJECJU7DB2LHJYTIZ5VCJSEGSX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX/action/storage_attestation","attest_author":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX/action/author_attestation","sign_citation":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX/action/citation_signature","submit_replication":"https://pith.science/pith/VJECJU7DB2LHJYTIZ5VCJSEGSX/action/replication_record"}},"created_at":"2026-05-18T02:12:25.491914+00:00","updated_at":"2026-05-18T02:12:25.491914+00:00"}