{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:WHLA7B5ODTIE7PUZ5D67MAAEQ5","short_pith_number":"pith:WHLA7B5O","schema_version":"1.0","canonical_sha256":"b1d60f87ae1cd04fbe99e8fdf600048757d3e5f78d818156c37c40886f248454","source":{"kind":"arxiv","id":"1805.08033","version":2},"attestation_state":"computed","paper":{"title":"Primeval very low-mass stars and brown dwarfs - III. The halo transitional brown dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. J. Burgasser, B. Burningham, B. Lopez Marti, D. Homeier, D. J. Pinfield, E. L. Martin, F. Allard, H. R. A. Jones, M. C. Galvez-Ortiz, M. R. Zapatero Osorio, N. Lodieu, R. L. Smart, R. Rebolo, Z. H. Zhang","submitted_at":"2018-05-21T13:07:57Z","abstract_excerpt":"We report the discovery of an esdL3 subdwarf, ULAS J020858.62+020657.0, and a usdL4.5 subdwarf, ULAS J230711.01+014447.1. They were identified as L subdwarfs by optical spectra obtained with the Gran Telescopio Canarias, and followed up by optical-to-near-infrared spectroscopy with the Very Large Telescope. We also obtained an optical-to-near-infrared spectrum of a previously known L subdwarf, ULAS J135058.85+081506.8, and reclassified it as a usdL3 subdwarf. These three objects all have typical halo kinematics. They have $T_{\\rm eff}$ around 2050$-$2250 K, $-$1.8 $\\leq$ [Fe/H] $\\leq -$1.5, an"},"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":"1805.08033","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-21T13:07:57Z","cross_cats_sorted":[],"title_canon_sha256":"caafd288ecb7a547a037c40395a92e9ed89820b4e27e4260dc31b4c17010a3f1","abstract_canon_sha256":"422ad0f49fa07eaee5e55c8cd1f69d4fa4ea166c9a0ad336cc980f3eaaa347be"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:12:37.885992Z","signature_b64":"V9vHa9x+z45DZm00/dzZ+BuNaDQXC2wnb7NAroP8tn9BGMgjFxBVPAn+CRAecvrk7nwLDlmHV4cDyUuAPvrjCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1d60f87ae1cd04fbe99e8fdf600048757d3e5f78d818156c37c40886f248454","last_reissued_at":"2026-05-18T00:12:37.885124Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:12:37.885124Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Primeval very low-mass stars and brown dwarfs - III. The halo transitional brown dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. J. Burgasser, B. Burningham, B. Lopez Marti, D. Homeier, D. J. Pinfield, E. L. Martin, F. Allard, H. R. A. Jones, M. C. Galvez-Ortiz, M. R. Zapatero Osorio, N. Lodieu, R. L. Smart, R. Rebolo, Z. H. Zhang","submitted_at":"2018-05-21T13:07:57Z","abstract_excerpt":"We report the discovery of an esdL3 subdwarf, ULAS J020858.62+020657.0, and a usdL4.5 subdwarf, ULAS J230711.01+014447.1. They were identified as L subdwarfs by optical spectra obtained with the Gran Telescopio Canarias, and followed up by optical-to-near-infrared spectroscopy with the Very Large Telescope. We also obtained an optical-to-near-infrared spectrum of a previously known L subdwarf, ULAS J135058.85+081506.8, and reclassified it as a usdL3 subdwarf. These three objects all have typical halo kinematics. They have $T_{\\rm eff}$ around 2050$-$2250 K, $-$1.8 $\\leq$ [Fe/H] $\\leq -$1.5, an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08033","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":"1805.08033","created_at":"2026-05-18T00:12:37.885238+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.08033v2","created_at":"2026-05-18T00:12:37.885238+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.08033","created_at":"2026-05-18T00:12:37.885238+00:00"},{"alias_kind":"pith_short_12","alias_value":"WHLA7B5ODTIE","created_at":"2026-05-18T12:32:59.047623+00:00"},{"alias_kind":"pith_short_16","alias_value":"WHLA7B5ODTIE7PUZ","created_at":"2026-05-18T12:32:59.047623+00:00"},{"alias_kind":"pith_short_8","alias_value":"WHLA7B5O","created_at":"2026-05-18T12:32:59.047623+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/WHLA7B5ODTIE7PUZ5D67MAAEQ5","json":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5.json","graph_json":"https://pith.science/api/pith-number/WHLA7B5ODTIE7PUZ5D67MAAEQ5/graph.json","events_json":"https://pith.science/api/pith-number/WHLA7B5ODTIE7PUZ5D67MAAEQ5/events.json","paper":"https://pith.science/paper/WHLA7B5O"},"agent_actions":{"view_html":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5","download_json":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5.json","view_paper":"https://pith.science/paper/WHLA7B5O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.08033&json=true","fetch_graph":"https://pith.science/api/pith-number/WHLA7B5ODTIE7PUZ5D67MAAEQ5/graph.json","fetch_events":"https://pith.science/api/pith-number/WHLA7B5ODTIE7PUZ5D67MAAEQ5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5/action/storage_attestation","attest_author":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5/action/author_attestation","sign_citation":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5/action/citation_signature","submit_replication":"https://pith.science/pith/WHLA7B5ODTIE7PUZ5D67MAAEQ5/action/replication_record"}},"created_at":"2026-05-18T00:12:37.885238+00:00","updated_at":"2026-05-18T00:12:37.885238+00:00"}