{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2000:ST7SWVG2BFRUCJ2VDYIPM3FWUO","short_pith_number":"pith:ST7SWVG2","schema_version":"1.0","canonical_sha256":"94ff2b54da09634127551e10f66cb6a38a7b872e5089be91fb43d33c0aa333b0","source":{"kind":"arxiv","id":"astro-ph/0006084","version":1},"attestation_state":"computed","paper":{"title":"Cold gas and star formation in a merging galaxy sequence","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Swinburne, (3) ATNF), Antonis Georgakakis (1), Duncan A. Forbes (2), Ray P. Norris (3) ((1) Birmingham","submitted_at":"2000-06-06T17:00:46Z","abstract_excerpt":"We explore the evolution of the cold gas and star-formation activity during galaxy interactions, using a merging galaxy sequence comprising both pre- and post-mergers. Data for this study come from the literature but supplemented by new radio observations presented here. Firstly, we confirm that the star-formation efficiency (SFE) increases close to nuclear coalescence. At post-merger stages there is evidence that the SFE declines to values typical of ellipticals. This trend can be attributed to M(H_2) depletion due to interaction induced star-formation. However, there is significant scatter, "},"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/0006084","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-06-06T17:00:46Z","cross_cats_sorted":[],"title_canon_sha256":"5f2adf011b7bccef6add9c97740136a0db5826b6ce3423863a7fff05afd1e360","abstract_canon_sha256":"128c26b4b9a2a4d983a4e7b30e8ba7cb8d34687968bd1a4e44902d1b4c8f7729"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:47.691948Z","signature_b64":"DAGzKgw4LBPnmqLA4f04HYvQc4/A7HCPvfVlvAGdn/bvWB0NHTyM4BviNSMHg63OEce4ua/XYj+xX1T+TI+MAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94ff2b54da09634127551e10f66cb6a38a7b872e5089be91fb43d33c0aa333b0","last_reissued_at":"2026-05-18T01:40:47.691416Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:47.691416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Cold gas and star formation in a merging galaxy sequence","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Swinburne, (3) ATNF), Antonis Georgakakis (1), Duncan A. Forbes (2), Ray P. Norris (3) ((1) Birmingham","submitted_at":"2000-06-06T17:00:46Z","abstract_excerpt":"We explore the evolution of the cold gas and star-formation activity during galaxy interactions, using a merging galaxy sequence comprising both pre- and post-mergers. Data for this study come from the literature but supplemented by new radio observations presented here. Firstly, we confirm that the star-formation efficiency (SFE) increases close to nuclear coalescence. At post-merger stages there is evidence that the SFE declines to values typical of ellipticals. This trend can be attributed to M(H_2) depletion due to interaction induced star-formation. However, there is significant scatter, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0006084","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/0006084","created_at":"2026-05-18T01:40:47.691508+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0006084v1","created_at":"2026-05-18T01:40:47.691508+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0006084","created_at":"2026-05-18T01:40:47.691508+00:00"},{"alias_kind":"pith_short_12","alias_value":"ST7SWVG2BFRU","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_16","alias_value":"ST7SWVG2BFRUCJ2V","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_8","alias_value":"ST7SWVG2","created_at":"2026-05-18T12:25:50.254431+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/ST7SWVG2BFRUCJ2VDYIPM3FWUO","json":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO.json","graph_json":"https://pith.science/api/pith-number/ST7SWVG2BFRUCJ2VDYIPM3FWUO/graph.json","events_json":"https://pith.science/api/pith-number/ST7SWVG2BFRUCJ2VDYIPM3FWUO/events.json","paper":"https://pith.science/paper/ST7SWVG2"},"agent_actions":{"view_html":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO","download_json":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO.json","view_paper":"https://pith.science/paper/ST7SWVG2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0006084&json=true","fetch_graph":"https://pith.science/api/pith-number/ST7SWVG2BFRUCJ2VDYIPM3FWUO/graph.json","fetch_events":"https://pith.science/api/pith-number/ST7SWVG2BFRUCJ2VDYIPM3FWUO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO/action/storage_attestation","attest_author":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO/action/author_attestation","sign_citation":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO/action/citation_signature","submit_replication":"https://pith.science/pith/ST7SWVG2BFRUCJ2VDYIPM3FWUO/action/replication_record"}},"created_at":"2026-05-18T01:40:47.691508+00:00","updated_at":"2026-05-18T01:40:47.691508+00:00"}