{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:N4A2LNYK44YGFW5AYV6GSJICEP","short_pith_number":"pith:N4A2LNYK","schema_version":"1.0","canonical_sha256":"6f01a5b70ae73062dba0c57c69250223c3d11bdec0561998dedf2e1c0489a82f","source":{"kind":"arxiv","id":"1404.3936","version":2},"attestation_state":"computed","paper":{"title":"Deriving model-based T$_e$-consistent chemical abundances in ionised gaseous nebulae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Enrique P\\'erez-Montero","submitted_at":"2014-04-15T14:44:11Z","abstract_excerpt":"The derivation of abundances in gaseous nebulae ionised by massive stars using optical collisionally excited emission lines is studied in this work comparing the direct or $T_e$ method with updated grids of photoionisation models covering a wide range of input conditions of O/H and N/O abundances and ionisation parameter. The abundances in a large sample of compiled objects with at least one auroral line are re-derived and later compared with the $\\chi^2$ weighted-mean abundances from the models. The agreement between the abundances using the two methods both for O/H and N/O is excellent with "},"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":"1404.3936","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-15T14:44:11Z","cross_cats_sorted":[],"title_canon_sha256":"e407819cfb83e3373d6143eb4fe9cd1107761894b936434984ef7298cc2a12c4","abstract_canon_sha256":"444daecdc4b563d3c30ef90b62fe779ae4fdb51c7dde5c57b2e5789825d4115d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:16.429834Z","signature_b64":"MyLg+xltZ/73YgN5+wuRotM2zZDQW3k7FGIcGczAmCPBil5oVK5yXB7TTiMwjzwDD/0QSqw7VpORoGpjBaRnAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f01a5b70ae73062dba0c57c69250223c3d11bdec0561998dedf2e1c0489a82f","last_reissued_at":"2026-05-18T02:39:16.429197Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:16.429197Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Deriving model-based T$_e$-consistent chemical abundances in ionised gaseous nebulae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Enrique P\\'erez-Montero","submitted_at":"2014-04-15T14:44:11Z","abstract_excerpt":"The derivation of abundances in gaseous nebulae ionised by massive stars using optical collisionally excited emission lines is studied in this work comparing the direct or $T_e$ method with updated grids of photoionisation models covering a wide range of input conditions of O/H and N/O abundances and ionisation parameter. The abundances in a large sample of compiled objects with at least one auroral line are re-derived and later compared with the $\\chi^2$ weighted-mean abundances from the models. The agreement between the abundances using the two methods both for O/H and N/O is excellent with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3936","kind":"arxiv","version":2},"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":"1404.3936","created_at":"2026-05-18T02:39:16.429385+00:00"},{"alias_kind":"arxiv_version","alias_value":"1404.3936v2","created_at":"2026-05-18T02:39:16.429385+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3936","created_at":"2026-05-18T02:39:16.429385+00:00"},{"alias_kind":"pith_short_12","alias_value":"N4A2LNYK44YG","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_16","alias_value":"N4A2LNYK44YGFW5A","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_8","alias_value":"N4A2LNYK","created_at":"2026-05-18T12:28:41.024544+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/N4A2LNYK44YGFW5AYV6GSJICEP","json":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP.json","graph_json":"https://pith.science/api/pith-number/N4A2LNYK44YGFW5AYV6GSJICEP/graph.json","events_json":"https://pith.science/api/pith-number/N4A2LNYK44YGFW5AYV6GSJICEP/events.json","paper":"https://pith.science/paper/N4A2LNYK"},"agent_actions":{"view_html":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP","download_json":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP.json","view_paper":"https://pith.science/paper/N4A2LNYK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1404.3936&json=true","fetch_graph":"https://pith.science/api/pith-number/N4A2LNYK44YGFW5AYV6GSJICEP/graph.json","fetch_events":"https://pith.science/api/pith-number/N4A2LNYK44YGFW5AYV6GSJICEP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP/action/storage_attestation","attest_author":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP/action/author_attestation","sign_citation":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP/action/citation_signature","submit_replication":"https://pith.science/pith/N4A2LNYK44YGFW5AYV6GSJICEP/action/replication_record"}},"created_at":"2026-05-18T02:39:16.429385+00:00","updated_at":"2026-05-18T02:39:16.429385+00:00"}