{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:3Q4HR3IP6TTFONVPBOBF7RAITP","short_pith_number":"pith:3Q4HR3IP","schema_version":"1.0","canonical_sha256":"dc3878ed0ff4e65736af0b825fc4089bcf58c3cdbf1e47f15612fca6aa89155a","source":{"kind":"arxiv","id":"0903.3962","version":4},"attestation_state":"computed","paper":{"title":"The Hubble sequence: just a vestige of merger events?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"((1) GEPI Observatoire de Paris Meudon (2) LAM Observatoire Astronomique de Marseille), E. Athanassoula (2), F. Hammer (1), H. Flores (1), M. Puech (1), M. Rodrigues (1), R. Delgado-Serrano (1), Y. Yang (1)","submitted_at":"2009-03-23T21:02:09Z","abstract_excerpt":"Abr: We investigate whether the Hubble sequence can be reproduced by the relics of merger events. We verify that, at zmed=0.65, the abundant population of anomalous starbursts is mainly linked to the local spirals. Their morphologies are dominated by young stars and are related to their ionised-gas kinematics. We show that both morphologies and kinematics can be reproduced by using gas modelling from Barnes' (2002) study of major mergers. Using our modelling to estimate the gas-to-stars transformation during a merger, we identify the gas fraction in the progenitors to be generally above 50%. A"},"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":"0903.3962","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-23T21:02:09Z","cross_cats_sorted":[],"title_canon_sha256":"ce14469b5ac50c4b6aa471bd50f393306d369f643b27c6d6f70efcb76c0da7e7","abstract_canon_sha256":"d724fbf686a9345e9979e7d50f7e37d878e2dd1ae3a53c9bb0e277e4a1fb0ec0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:26.396840Z","signature_b64":"1P7+zU515/C41mDunQCXSc9naVx0fHuVk8ypSC08FT19l3hHVTQ/ZW4IY2C/A+SMd5U15CArSJZ5d8aVoWs2AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc3878ed0ff4e65736af0b825fc4089bcf58c3cdbf1e47f15612fca6aa89155a","last_reissued_at":"2026-05-18T02:14:26.396237Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:26.396237Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Hubble sequence: just a vestige of merger events?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"((1) GEPI Observatoire de Paris Meudon (2) LAM Observatoire Astronomique de Marseille), E. Athanassoula (2), F. Hammer (1), H. Flores (1), M. Puech (1), M. Rodrigues (1), R. Delgado-Serrano (1), Y. Yang (1)","submitted_at":"2009-03-23T21:02:09Z","abstract_excerpt":"Abr: We investigate whether the Hubble sequence can be reproduced by the relics of merger events. We verify that, at zmed=0.65, the abundant population of anomalous starbursts is mainly linked to the local spirals. Their morphologies are dominated by young stars and are related to their ionised-gas kinematics. We show that both morphologies and kinematics can be reproduced by using gas modelling from Barnes' (2002) study of major mergers. Using our modelling to estimate the gas-to-stars transformation during a merger, we identify the gas fraction in the progenitors to be generally above 50%. A"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.3962","kind":"arxiv","version":4},"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":"0903.3962","created_at":"2026-05-18T02:14:26.396332+00:00"},{"alias_kind":"arxiv_version","alias_value":"0903.3962v4","created_at":"2026-05-18T02:14:26.396332+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.3962","created_at":"2026-05-18T02:14:26.396332+00:00"},{"alias_kind":"pith_short_12","alias_value":"3Q4HR3IP6TTF","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_16","alias_value":"3Q4HR3IP6TTFONVP","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_8","alias_value":"3Q4HR3IP","created_at":"2026-05-18T12:25:58.018023+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/3Q4HR3IP6TTFONVPBOBF7RAITP","json":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP.json","graph_json":"https://pith.science/api/pith-number/3Q4HR3IP6TTFONVPBOBF7RAITP/graph.json","events_json":"https://pith.science/api/pith-number/3Q4HR3IP6TTFONVPBOBF7RAITP/events.json","paper":"https://pith.science/paper/3Q4HR3IP"},"agent_actions":{"view_html":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP","download_json":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP.json","view_paper":"https://pith.science/paper/3Q4HR3IP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0903.3962&json=true","fetch_graph":"https://pith.science/api/pith-number/3Q4HR3IP6TTFONVPBOBF7RAITP/graph.json","fetch_events":"https://pith.science/api/pith-number/3Q4HR3IP6TTFONVPBOBF7RAITP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP/action/storage_attestation","attest_author":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP/action/author_attestation","sign_citation":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP/action/citation_signature","submit_replication":"https://pith.science/pith/3Q4HR3IP6TTFONVPBOBF7RAITP/action/replication_record"}},"created_at":"2026-05-18T02:14:26.396332+00:00","updated_at":"2026-05-18T02:14:26.396332+00:00"}