{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:WCCEFX4Z5MXJJKTR6OTMSDEJVC","short_pith_number":"pith:WCCEFX4Z","schema_version":"1.0","canonical_sha256":"b08442df99eb2e94aa71f3a6c90c89a8aada7ed54f661f969496c272b0371096","source":{"kind":"arxiv","id":"1002.0585","version":1},"attestation_state":"computed","paper":{"title":"Dissipational versus Dissipationless Galaxy Formation and the Dark Matter Content of Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Claire N. Lackner, Jeremiah P. Ostriker (Princeton University)","submitted_at":"2010-02-02T21:05:52Z","abstract_excerpt":"We examine two extreme models for the build-up of the stellar component of luminous elliptical galaxies. In one case, we assume the build-up of stars is dissipational, with centrally accreted gas radiating away its orbital and thermal energy; the dark matter halo will undergo adiabatic contraction and the central dark matter density profile will steepen. For the second model, we assume the central galaxy is assembled by a series of dissipationless mergers of stellar clumps that have formed far from the nascent galaxy. In order to be accreted, these clumps lose their orbital energy to the dark "},"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":"1002.0585","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-02-02T21:05:52Z","cross_cats_sorted":[],"title_canon_sha256":"18d3686d0690307584882701677f588534220c5477f4825f803dd510619a4a5a","abstract_canon_sha256":"2c366787a2f6562ad86283be509ab17fcea6817d59fc5aa4e7405575da885eee"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:09:20.723833Z","signature_b64":"Dn0d63YelNIpPb/sFh+MaviOAnzCJV4Zmeo14EZjQc7EhCHRPgkmM38o9F167+xjFpn7GeyL77jXvemIYoldAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b08442df99eb2e94aa71f3a6c90c89a8aada7ed54f661f969496c272b0371096","last_reissued_at":"2026-05-18T02:09:20.723244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:09:20.723244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dissipational versus Dissipationless Galaxy Formation and the Dark Matter Content of Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Claire N. Lackner, Jeremiah P. Ostriker (Princeton University)","submitted_at":"2010-02-02T21:05:52Z","abstract_excerpt":"We examine two extreme models for the build-up of the stellar component of luminous elliptical galaxies. In one case, we assume the build-up of stars is dissipational, with centrally accreted gas radiating away its orbital and thermal energy; the dark matter halo will undergo adiabatic contraction and the central dark matter density profile will steepen. For the second model, we assume the central galaxy is assembled by a series of dissipationless mergers of stellar clumps that have formed far from the nascent galaxy. In order to be accreted, these clumps lose their orbital energy to the dark "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0585","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":"1002.0585","created_at":"2026-05-18T02:09:20.723339+00:00"},{"alias_kind":"arxiv_version","alias_value":"1002.0585v1","created_at":"2026-05-18T02:09:20.723339+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0585","created_at":"2026-05-18T02:09:20.723339+00:00"},{"alias_kind":"pith_short_12","alias_value":"WCCEFX4Z5MXJ","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_16","alias_value":"WCCEFX4Z5MXJJKTR","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_8","alias_value":"WCCEFX4Z","created_at":"2026-05-18T12:26:15.391820+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/WCCEFX4Z5MXJJKTR6OTMSDEJVC","json":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC.json","graph_json":"https://pith.science/api/pith-number/WCCEFX4Z5MXJJKTR6OTMSDEJVC/graph.json","events_json":"https://pith.science/api/pith-number/WCCEFX4Z5MXJJKTR6OTMSDEJVC/events.json","paper":"https://pith.science/paper/WCCEFX4Z"},"agent_actions":{"view_html":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC","download_json":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC.json","view_paper":"https://pith.science/paper/WCCEFX4Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1002.0585&json=true","fetch_graph":"https://pith.science/api/pith-number/WCCEFX4Z5MXJJKTR6OTMSDEJVC/graph.json","fetch_events":"https://pith.science/api/pith-number/WCCEFX4Z5MXJJKTR6OTMSDEJVC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC/action/storage_attestation","attest_author":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC/action/author_attestation","sign_citation":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC/action/citation_signature","submit_replication":"https://pith.science/pith/WCCEFX4Z5MXJJKTR6OTMSDEJVC/action/replication_record"}},"created_at":"2026-05-18T02:09:20.723339+00:00","updated_at":"2026-05-18T02:09:20.723339+00:00"}