{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1999:D5Z2GETIV6L2IKOE36ZZUS47DU","short_pith_number":"pith:D5Z2GETI","schema_version":"1.0","canonical_sha256":"1f73a31268af97a429c4dfb39a4b9f1d3e275b1c0a8ec94f85038c4a31682db2","source":{"kind":"arxiv","id":"astro-ph/9910181","version":1},"attestation_state":"computed","paper":{"title":"HI in four star-forming low-luminosity E/S0 and S0 galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E. Sadler, R. Morganti, T. Oosterloo","submitted_at":"1999-10-11T07:46:06Z","abstract_excerpt":"We present HI data cubes of four low-luminosity early-type galaxies which are currently forming stars. These galaxies have absolute magnitudes in the range M_B=-17.9 to -19.9 (H_o=50 km/s/Mpc). Their HI masses range between a few times 10^8 and a few times 10^9 M_sun and the corresponding values for M_HI/L_B are between 0.07 and 0.42, so these systems are HI rich for their morphological type. In all four galaxies, the HI is strongly centrally concentrated with high central HI surface densities, in contrast to what is typically observed in more luminous early-type galaxies. In two galaxies (NGC"},"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/9910181","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-10-11T07:46:06Z","cross_cats_sorted":[],"title_canon_sha256":"011d91d942bee77dd8379cc40d21ef5d96f134b4d4176db1b13fd6b6453a09b9","abstract_canon_sha256":"117d90b6600360bfdc6a76efbe488b67e3d61aa2163d34d96b5435bb6dd3983c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:35.962464Z","signature_b64":"9oOdLxj8nkG/528Gq9vX2XyUFfHIhp+BcKE5/uIaXgfSXFFwcj0yqx7FnQbZ7vkjVSzIw5CViPHSOa4ATxliDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f73a31268af97a429c4dfb39a4b9f1d3e275b1c0a8ec94f85038c4a31682db2","last_reissued_at":"2026-05-18T01:07:35.961885Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:35.961885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"HI in four star-forming low-luminosity E/S0 and S0 galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E. Sadler, R. Morganti, T. Oosterloo","submitted_at":"1999-10-11T07:46:06Z","abstract_excerpt":"We present HI data cubes of four low-luminosity early-type galaxies which are currently forming stars. These galaxies have absolute magnitudes in the range M_B=-17.9 to -19.9 (H_o=50 km/s/Mpc). Their HI masses range between a few times 10^8 and a few times 10^9 M_sun and the corresponding values for M_HI/L_B are between 0.07 and 0.42, so these systems are HI rich for their morphological type. In all four galaxies, the HI is strongly centrally concentrated with high central HI surface densities, in contrast to what is typically observed in more luminous early-type galaxies. In two galaxies (NGC"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9910181","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/9910181","created_at":"2026-05-18T01:07:35.961977+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9910181v1","created_at":"2026-05-18T01:07:35.961977+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9910181","created_at":"2026-05-18T01:07:35.961977+00:00"},{"alias_kind":"pith_short_12","alias_value":"D5Z2GETIV6L2","created_at":"2026-05-18T12:25:49.038998+00:00"},{"alias_kind":"pith_short_16","alias_value":"D5Z2GETIV6L2IKOE","created_at":"2026-05-18T12:25:49.038998+00:00"},{"alias_kind":"pith_short_8","alias_value":"D5Z2GETI","created_at":"2026-05-18T12:25:49.038998+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/D5Z2GETIV6L2IKOE36ZZUS47DU","json":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU.json","graph_json":"https://pith.science/api/pith-number/D5Z2GETIV6L2IKOE36ZZUS47DU/graph.json","events_json":"https://pith.science/api/pith-number/D5Z2GETIV6L2IKOE36ZZUS47DU/events.json","paper":"https://pith.science/paper/D5Z2GETI"},"agent_actions":{"view_html":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU","download_json":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU.json","view_paper":"https://pith.science/paper/D5Z2GETI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9910181&json=true","fetch_graph":"https://pith.science/api/pith-number/D5Z2GETIV6L2IKOE36ZZUS47DU/graph.json","fetch_events":"https://pith.science/api/pith-number/D5Z2GETIV6L2IKOE36ZZUS47DU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU/action/storage_attestation","attest_author":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU/action/author_attestation","sign_citation":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU/action/citation_signature","submit_replication":"https://pith.science/pith/D5Z2GETIV6L2IKOE36ZZUS47DU/action/replication_record"}},"created_at":"2026-05-18T01:07:35.961977+00:00","updated_at":"2026-05-18T01:07:35.961977+00:00"}