{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:VO7MUO5AQSZBTQCITJWISXAN5I","short_pith_number":"pith:VO7MUO5A","schema_version":"1.0","canonical_sha256":"abbeca3ba084b219c0489a6c895c0dea126705d483dd2f170f81723c87682b0e","source":{"kind":"arxiv","id":"1205.6782","version":1},"attestation_state":"computed","paper":{"title":"Direct Oxygen Abundances for Low Luminosity LVL Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andrew R. Marble, Benjamin D. Johnson, Charles W. Engelbracht, Daniela Calzetti, Daniel A. Dale, Danielle A. Berg, Evan D. Skillman, Janice C. Lee, Jr., Liese van Zee, Robert C. Kennicutt","submitted_at":"2012-05-30T19:25:27Z","abstract_excerpt":"We present MMT spectroscopic observations of HII regions in 42 low luminosity galaxies in the LVL. For 31 galaxies, we measured the temperature sensitive [O III] line at a strength of 4 sigma or greater, and thus determine direct oxygen abundances. Our results provide the first direct estimates of oxygen abundance for 19 galaxies. Oxygen abundances were compared to B-band and 4.5 micron luminosities and stellar masses in order to characterize the luminosity-metallicity (L-Z) and mass-metallicity (M-Z) relationships at low-luminosity.\n  We present and analyze a \"Combined Select\" sample composed"},"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":"1205.6782","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-30T19:25:27Z","cross_cats_sorted":[],"title_canon_sha256":"04bb35de810a402b9a4d8bbd9a7c1e0d8e0ba03a1a8224bd53b989cac06c4a38","abstract_canon_sha256":"3c8e8fc8f06dc9b595918ea2366c291a823fea101c8843bc7960f17e224ae6e2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:09.845550Z","signature_b64":"mMTraG9fzmiSN9e9tF92h0c4oKrufw/cTHyPTcBy+H0kUdu+stacw2pXM84VeGQix5Z2oc6VoiXj4f/zoZ58Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"abbeca3ba084b219c0489a6c895c0dea126705d483dd2f170f81723c87682b0e","last_reissued_at":"2026-05-18T01:57:09.845063Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:09.845063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Direct Oxygen Abundances for Low Luminosity LVL Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andrew R. Marble, Benjamin D. Johnson, Charles W. Engelbracht, Daniela Calzetti, Daniel A. Dale, Danielle A. Berg, Evan D. Skillman, Janice C. Lee, Jr., Liese van Zee, Robert C. Kennicutt","submitted_at":"2012-05-30T19:25:27Z","abstract_excerpt":"We present MMT spectroscopic observations of HII regions in 42 low luminosity galaxies in the LVL. For 31 galaxies, we measured the temperature sensitive [O III] line at a strength of 4 sigma or greater, and thus determine direct oxygen abundances. Our results provide the first direct estimates of oxygen abundance for 19 galaxies. Oxygen abundances were compared to B-band and 4.5 micron luminosities and stellar masses in order to characterize the luminosity-metallicity (L-Z) and mass-metallicity (M-Z) relationships at low-luminosity.\n  We present and analyze a \"Combined Select\" sample composed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6782","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":"1205.6782","created_at":"2026-05-18T01:57:09.845136+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.6782v1","created_at":"2026-05-18T01:57:09.845136+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6782","created_at":"2026-05-18T01:57:09.845136+00:00"},{"alias_kind":"pith_short_12","alias_value":"VO7MUO5AQSZB","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_16","alias_value":"VO7MUO5AQSZBTQCI","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_8","alias_value":"VO7MUO5A","created_at":"2026-05-18T12:27:25.539911+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/VO7MUO5AQSZBTQCITJWISXAN5I","json":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I.json","graph_json":"https://pith.science/api/pith-number/VO7MUO5AQSZBTQCITJWISXAN5I/graph.json","events_json":"https://pith.science/api/pith-number/VO7MUO5AQSZBTQCITJWISXAN5I/events.json","paper":"https://pith.science/paper/VO7MUO5A"},"agent_actions":{"view_html":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I","download_json":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I.json","view_paper":"https://pith.science/paper/VO7MUO5A","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.6782&json=true","fetch_graph":"https://pith.science/api/pith-number/VO7MUO5AQSZBTQCITJWISXAN5I/graph.json","fetch_events":"https://pith.science/api/pith-number/VO7MUO5AQSZBTQCITJWISXAN5I/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I/action/storage_attestation","attest_author":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I/action/author_attestation","sign_citation":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I/action/citation_signature","submit_replication":"https://pith.science/pith/VO7MUO5AQSZBTQCITJWISXAN5I/action/replication_record"}},"created_at":"2026-05-18T01:57:09.845136+00:00","updated_at":"2026-05-18T01:57:09.845136+00:00"}