{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:PYZ6GEUJ4WL2YYEPORD3VJFPO7","short_pith_number":"pith:PYZ6GEUJ","schema_version":"1.0","canonical_sha256":"7e33e31289e597ac608f7447baa4af77d8f8fd74e822a533d63e97814a69eda6","source":{"kind":"arxiv","id":"1409.4042","version":1},"attestation_state":"computed","paper":{"title":"A Helium-Carbon Correlation on the Extreme Horizontal Branch in $\\omega$ Centauri","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Annalisa Calamida, Gilles Fontaine, Giuseppe Bono, Marilyn Latour, Pierre Brassard, Suzanna K. Randall","submitted_at":"2014-09-14T10:17:27Z","abstract_excerpt":"Taking advantage of a recent FORS2/VLT spectroscopic sample of Extreme Horizontal Branch (EHB) stars in $\\omega$ Cen, we isolate 38 spectra well suited for detailed atmospheric studies and determine their fundamental parameters ($T_{\\rm eff}$, log $g$, and log $N$(He)/$N$(H)) using NLTE, metal line-blanketed models. We find that our targets can be divided into three groups: 6 stars are hot ($T_{\\rm eff}$$\\buildrel>\\over\\sim\\ $ 45,000 K) H-rich subdwarf O stars, 7 stars are typical H-rich sdB stars ($T_{\\rm eff}$$ \\buildrel<\\over\\sim\\ $35,000 K), and the remaining 25 targets at intermediate eff"},"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":"1409.4042","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-14T10:17:27Z","cross_cats_sorted":[],"title_canon_sha256":"9008c5ba6d20981b9fb583604212994762996f2855d816a08c2e8036ab2f033d","abstract_canon_sha256":"8353f43166aeef19a2b3ebd6d02a2c2f0b6cee27012ab39f83741cd742482b6e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:02.776932Z","signature_b64":"7q3oDRMglXRoBZfHsQozsY/aKWF++9JeFu5UQ/BM2suEbtjYLBygWypyJSZSlw5LHEVsgJOdS+ddmA4OXOaFDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e33e31289e597ac608f7447baa4af77d8f8fd74e822a533d63e97814a69eda6","last_reissued_at":"2026-05-18T01:42:02.776235Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:02.776235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Helium-Carbon Correlation on the Extreme Horizontal Branch in $\\omega$ Centauri","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Annalisa Calamida, Gilles Fontaine, Giuseppe Bono, Marilyn Latour, Pierre Brassard, Suzanna K. Randall","submitted_at":"2014-09-14T10:17:27Z","abstract_excerpt":"Taking advantage of a recent FORS2/VLT spectroscopic sample of Extreme Horizontal Branch (EHB) stars in $\\omega$ Cen, we isolate 38 spectra well suited for detailed atmospheric studies and determine their fundamental parameters ($T_{\\rm eff}$, log $g$, and log $N$(He)/$N$(H)) using NLTE, metal line-blanketed models. We find that our targets can be divided into three groups: 6 stars are hot ($T_{\\rm eff}$$\\buildrel>\\over\\sim\\ $ 45,000 K) H-rich subdwarf O stars, 7 stars are typical H-rich sdB stars ($T_{\\rm eff}$$ \\buildrel<\\over\\sim\\ $35,000 K), and the remaining 25 targets at intermediate eff"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.4042","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":"1409.4042","created_at":"2026-05-18T01:42:02.776370+00:00"},{"alias_kind":"arxiv_version","alias_value":"1409.4042v1","created_at":"2026-05-18T01:42:02.776370+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.4042","created_at":"2026-05-18T01:42:02.776370+00:00"},{"alias_kind":"pith_short_12","alias_value":"PYZ6GEUJ4WL2","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_16","alias_value":"PYZ6GEUJ4WL2YYEP","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_8","alias_value":"PYZ6GEUJ","created_at":"2026-05-18T12:28:43.426989+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/PYZ6GEUJ4WL2YYEPORD3VJFPO7","json":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7.json","graph_json":"https://pith.science/api/pith-number/PYZ6GEUJ4WL2YYEPORD3VJFPO7/graph.json","events_json":"https://pith.science/api/pith-number/PYZ6GEUJ4WL2YYEPORD3VJFPO7/events.json","paper":"https://pith.science/paper/PYZ6GEUJ"},"agent_actions":{"view_html":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7","download_json":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7.json","view_paper":"https://pith.science/paper/PYZ6GEUJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1409.4042&json=true","fetch_graph":"https://pith.science/api/pith-number/PYZ6GEUJ4WL2YYEPORD3VJFPO7/graph.json","fetch_events":"https://pith.science/api/pith-number/PYZ6GEUJ4WL2YYEPORD3VJFPO7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7/action/storage_attestation","attest_author":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7/action/author_attestation","sign_citation":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7/action/citation_signature","submit_replication":"https://pith.science/pith/PYZ6GEUJ4WL2YYEPORD3VJFPO7/action/replication_record"}},"created_at":"2026-05-18T01:42:02.776370+00:00","updated_at":"2026-05-18T01:42:02.776370+00:00"}