{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:GFD3OQZMRWZCNUW32IVV7U3MCK","short_pith_number":"pith:GFD3OQZM","schema_version":"1.0","canonical_sha256":"3147b7432c8db226d2dbd22b5fd36c12ab57779c20fb24fdffab8537beb67d4c","source":{"kind":"arxiv","id":"1510.05399","version":4},"attestation_state":"computed","paper":{"title":"The PNe and H II regions in NGC 6822 revisited. Clues to AGB nucleosynthesis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"2), (2) ULL, (3) IA-UNAM, 4) ((1) IAC, (4) ICN-UNAM, Jorge Garc\\'ia-Rojas (1, Liliana Hern\\'andez-Mart\\'inez (3, Mexico, Mexico), Miriam Pe\\~na (3), Sheila Flores-Dur\\'an (3), Spain","submitted_at":"2015-10-19T09:13:15Z","abstract_excerpt":"(Abridged) The chemical behaviour of an ample sample of PNe in NGC6822 is analyzed. Spectrophotometric data of 11 PNe and two H II regions were obtained with the OSIRIS spectrograph attached to the Gran Telescopio Canarias. Data for other 13 PNe and three H II regions were retrieved from the literature. Physical conditions and chemical abundances of O, N, Ne, Ar and S were derived for 19 PNe and 4 H II regions. Abundances in the PNe sample are widely distributed showing 12+log(O/H) from 7.4 to 8.2 and 12+log(Ar/H) from 4.97 to 5.80. Two groups of PNe can be differentiated: one old, with low me"},"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":"1510.05399","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-19T09:13:15Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"74e67eefadc33acbdf99468327f5bc063f52ad12dc0c8ab237cef20eb047a994","abstract_canon_sha256":"dfc822fc4762c04c48dda4776a008ab9abf60bb86ae1402c44ce73ce0b7472d0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:52.269659Z","signature_b64":"RlZBfxKoQQKEXjbJT8CbArclVXolwfQ7sFuZSyubNXi3xAd+6kdx+j4wVJTHqKeNoNG+b5l1M+8KjKZ6aVggBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3147b7432c8db226d2dbd22b5fd36c12ab57779c20fb24fdffab8537beb67d4c","last_reissued_at":"2026-05-18T01:21:52.269116Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:52.269116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The PNe and H II regions in NGC 6822 revisited. Clues to AGB nucleosynthesis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"2), (2) ULL, (3) IA-UNAM, 4) ((1) IAC, (4) ICN-UNAM, Jorge Garc\\'ia-Rojas (1, Liliana Hern\\'andez-Mart\\'inez (3, Mexico, Mexico), Miriam Pe\\~na (3), Sheila Flores-Dur\\'an (3), Spain","submitted_at":"2015-10-19T09:13:15Z","abstract_excerpt":"(Abridged) The chemical behaviour of an ample sample of PNe in NGC6822 is analyzed. Spectrophotometric data of 11 PNe and two H II regions were obtained with the OSIRIS spectrograph attached to the Gran Telescopio Canarias. Data for other 13 PNe and three H II regions were retrieved from the literature. Physical conditions and chemical abundances of O, N, Ne, Ar and S were derived for 19 PNe and 4 H II regions. Abundances in the PNe sample are widely distributed showing 12+log(O/H) from 7.4 to 8.2 and 12+log(Ar/H) from 4.97 to 5.80. Two groups of PNe can be differentiated: one old, with low me"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05399","kind":"arxiv","version":4},"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":"1510.05399","created_at":"2026-05-18T01:21:52.269200+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.05399v4","created_at":"2026-05-18T01:21:52.269200+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05399","created_at":"2026-05-18T01:21:52.269200+00:00"},{"alias_kind":"pith_short_12","alias_value":"GFD3OQZMRWZC","created_at":"2026-05-18T12:29:22.688609+00:00"},{"alias_kind":"pith_short_16","alias_value":"GFD3OQZMRWZCNUW3","created_at":"2026-05-18T12:29:22.688609+00:00"},{"alias_kind":"pith_short_8","alias_value":"GFD3OQZM","created_at":"2026-05-18T12:29:22.688609+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2606.11394","citing_title":"SDSS-V LVM: Revealing the Physical and Chemical Structure of the Helix Nebula","ref_index":132,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK","json":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK.json","graph_json":"https://pith.science/api/pith-number/GFD3OQZMRWZCNUW32IVV7U3MCK/graph.json","events_json":"https://pith.science/api/pith-number/GFD3OQZMRWZCNUW32IVV7U3MCK/events.json","paper":"https://pith.science/paper/GFD3OQZM"},"agent_actions":{"view_html":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK","download_json":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK.json","view_paper":"https://pith.science/paper/GFD3OQZM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.05399&json=true","fetch_graph":"https://pith.science/api/pith-number/GFD3OQZMRWZCNUW32IVV7U3MCK/graph.json","fetch_events":"https://pith.science/api/pith-number/GFD3OQZMRWZCNUW32IVV7U3MCK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK/action/storage_attestation","attest_author":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK/action/author_attestation","sign_citation":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK/action/citation_signature","submit_replication":"https://pith.science/pith/GFD3OQZMRWZCNUW32IVV7U3MCK/action/replication_record"}},"created_at":"2026-05-18T01:21:52.269200+00:00","updated_at":"2026-05-18T01:21:52.269200+00:00"}