{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:5HDVKR7L3DAXT2QIN5CWBNLD7M","short_pith_number":"pith:5HDVKR7L","schema_version":"1.0","canonical_sha256":"e9c75547ebd8c179ea086f4560b563fb021d8ee22f286ef66a553ac5d0ea0a11","source":{"kind":"arxiv","id":"1207.4189","version":1},"attestation_state":"computed","paper":{"title":"Angular momentum and galaxy formation revisited","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Aaron J. Romanowsky, S. Michael Fall","submitted_at":"2012-07-17T20:00:03Z","abstract_excerpt":"Motivated by new kinematic data in the outer parts of early-type galaxies (ETGs), we re-examine angular momentum (AM) in all galaxy types. We present methods for estimating the specific AM j, focusing on ETGs, to derive relations between stellar j_* and mass M_* (after Fall 1983). We perform analyses of 8 galaxies out to ~10 R_e, finding that data at 2 R_e are sufficient to estimate total j_*. Our results contravene suggestions that ellipticals (Es) harbor large reservoirs of hidden j_* from AM transport in major mergers. We carry out a j_*-M_* analysis of literature data for ~100 nearby brigh"},"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":"1207.4189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-17T20:00:03Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"13f2bc5343f1d16531ba6921fbd37ad3eed31951f776be34e302c4e8f9449c32","abstract_canon_sha256":"41a19155e84659a42c14dc3310e17a15be4001f8a5f78665f566b736d7fa9aae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:17.204961Z","signature_b64":"q6L0zkznNVY7Fb4Hn2laASFo/ULCYL1UOKCSsF+hHC8jvVFla5wy/xMNXPlFE44Viwzo9LYe1svcSYJPd/5sCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9c75547ebd8c179ea086f4560b563fb021d8ee22f286ef66a553ac5d0ea0a11","last_reissued_at":"2026-05-18T01:56:17.204171Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:17.204171Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Angular momentum and galaxy formation revisited","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Aaron J. Romanowsky, S. Michael Fall","submitted_at":"2012-07-17T20:00:03Z","abstract_excerpt":"Motivated by new kinematic data in the outer parts of early-type galaxies (ETGs), we re-examine angular momentum (AM) in all galaxy types. We present methods for estimating the specific AM j, focusing on ETGs, to derive relations between stellar j_* and mass M_* (after Fall 1983). We perform analyses of 8 galaxies out to ~10 R_e, finding that data at 2 R_e are sufficient to estimate total j_*. Our results contravene suggestions that ellipticals (Es) harbor large reservoirs of hidden j_* from AM transport in major mergers. We carry out a j_*-M_* analysis of literature data for ~100 nearby brigh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.4189","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":"1207.4189","created_at":"2026-05-18T01:56:17.204309+00:00"},{"alias_kind":"arxiv_version","alias_value":"1207.4189v1","created_at":"2026-05-18T01:56:17.204309+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.4189","created_at":"2026-05-18T01:56:17.204309+00:00"},{"alias_kind":"pith_short_12","alias_value":"5HDVKR7L3DAX","created_at":"2026-05-18T12:26:53.410803+00:00"},{"alias_kind":"pith_short_16","alias_value":"5HDVKR7L3DAXT2QI","created_at":"2026-05-18T12:26:53.410803+00:00"},{"alias_kind":"pith_short_8","alias_value":"5HDVKR7L","created_at":"2026-05-18T12:26:53.410803+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/5HDVKR7L3DAXT2QIN5CWBNLD7M","json":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M.json","graph_json":"https://pith.science/api/pith-number/5HDVKR7L3DAXT2QIN5CWBNLD7M/graph.json","events_json":"https://pith.science/api/pith-number/5HDVKR7L3DAXT2QIN5CWBNLD7M/events.json","paper":"https://pith.science/paper/5HDVKR7L"},"agent_actions":{"view_html":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M","download_json":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M.json","view_paper":"https://pith.science/paper/5HDVKR7L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1207.4189&json=true","fetch_graph":"https://pith.science/api/pith-number/5HDVKR7L3DAXT2QIN5CWBNLD7M/graph.json","fetch_events":"https://pith.science/api/pith-number/5HDVKR7L3DAXT2QIN5CWBNLD7M/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M/action/storage_attestation","attest_author":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M/action/author_attestation","sign_citation":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M/action/citation_signature","submit_replication":"https://pith.science/pith/5HDVKR7L3DAXT2QIN5CWBNLD7M/action/replication_record"}},"created_at":"2026-05-18T01:56:17.204309+00:00","updated_at":"2026-05-18T01:56:17.204309+00:00"}