{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:6VFPFIDAFUUKSBBX4VDT7YHF5O","short_pith_number":"pith:6VFPFIDA","schema_version":"1.0","canonical_sha256":"f54af2a0602d28a90437e5473fe0e5eb88c78fe7578d3bf9038f88a32be407b8","source":{"kind":"arxiv","id":"1406.1518","version":1},"attestation_state":"computed","paper":{"title":"Signatures of Cloud, Temperature, and Gravity From Spectra of the Closest Brown Dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Adam J. Burgasser, Chris Tinney, David J. Osip, Jacqueline K. Faherty, Joseph C. Filippazzo, Robert A. Simcoe, Yuri Beletsky","submitted_at":"2014-06-05T20:41:39Z","abstract_excerpt":"We present medium resolution optical and NIR spectral data for components of the newly discovered WISE J104915.57-531906.1AB (Luhman 16AB) brown dwarf binary. The optical spectra reveal strong 6708 A Li I absorption in both Luhman 16A (8.0+/-0.4 A) and Luhman 16B (3.8+/-0.4 A). Interestingly, this is the first detection of Li I absorption in a T dwarf. Combined with the lack of surface gravity features, the Li I detection constrains the system age to 0.1 - 3 Gyr. In the NIR data, we find strong KI absorption at 1.168, 1.177, 1.243, and 1.254 {\\mu}m in both components. Compared to the strength "},"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":"1406.1518","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-05T20:41:39Z","cross_cats_sorted":[],"title_canon_sha256":"390c2b0b652977b1e21dfa2ea8943e2f30c1375fa81ead8566443dee6c7e3d8e","abstract_canon_sha256":"da2976a1b0a7bf98a27f74ffb0c87a95385d712832de6cc797ce40e03f663df5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:01.734452Z","signature_b64":"1ImC2+lPL7YvzednDrI98L1/zbTAw+DHaXgyRyQwMyuObnB5WT5Gb/hJHITHxJnmUVh0/MH4v6qRr6wMa380Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f54af2a0602d28a90437e5473fe0e5eb88c78fe7578d3bf9038f88a32be407b8","last_reissued_at":"2026-05-18T01:43:01.734085Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:01.734085Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Signatures of Cloud, Temperature, and Gravity From Spectra of the Closest Brown Dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Adam J. Burgasser, Chris Tinney, David J. Osip, Jacqueline K. Faherty, Joseph C. Filippazzo, Robert A. Simcoe, Yuri Beletsky","submitted_at":"2014-06-05T20:41:39Z","abstract_excerpt":"We present medium resolution optical and NIR spectral data for components of the newly discovered WISE J104915.57-531906.1AB (Luhman 16AB) brown dwarf binary. The optical spectra reveal strong 6708 A Li I absorption in both Luhman 16A (8.0+/-0.4 A) and Luhman 16B (3.8+/-0.4 A). Interestingly, this is the first detection of Li I absorption in a T dwarf. Combined with the lack of surface gravity features, the Li I detection constrains the system age to 0.1 - 3 Gyr. In the NIR data, we find strong KI absorption at 1.168, 1.177, 1.243, and 1.254 {\\mu}m in both components. Compared to the strength "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.1518","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":"1406.1518","created_at":"2026-05-18T01:43:01.734140+00:00"},{"alias_kind":"arxiv_version","alias_value":"1406.1518v1","created_at":"2026-05-18T01:43:01.734140+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.1518","created_at":"2026-05-18T01:43:01.734140+00:00"},{"alias_kind":"pith_short_12","alias_value":"6VFPFIDAFUUK","created_at":"2026-05-18T12:28:16.859392+00:00"},{"alias_kind":"pith_short_16","alias_value":"6VFPFIDAFUUKSBBX","created_at":"2026-05-18T12:28:16.859392+00:00"},{"alias_kind":"pith_short_8","alias_value":"6VFPFIDA","created_at":"2026-05-18T12:28:16.859392+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.23814","citing_title":"Integral field spectroscopy with no IFUs: combining wide-field rotational slitless spectroscopy with tomographic reconstruction","ref_index":156,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O","json":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O.json","graph_json":"https://pith.science/api/pith-number/6VFPFIDAFUUKSBBX4VDT7YHF5O/graph.json","events_json":"https://pith.science/api/pith-number/6VFPFIDAFUUKSBBX4VDT7YHF5O/events.json","paper":"https://pith.science/paper/6VFPFIDA"},"agent_actions":{"view_html":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O","download_json":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O.json","view_paper":"https://pith.science/paper/6VFPFIDA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1406.1518&json=true","fetch_graph":"https://pith.science/api/pith-number/6VFPFIDAFUUKSBBX4VDT7YHF5O/graph.json","fetch_events":"https://pith.science/api/pith-number/6VFPFIDAFUUKSBBX4VDT7YHF5O/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O/action/storage_attestation","attest_author":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O/action/author_attestation","sign_citation":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O/action/citation_signature","submit_replication":"https://pith.science/pith/6VFPFIDAFUUKSBBX4VDT7YHF5O/action/replication_record"}},"created_at":"2026-05-18T01:43:01.734140+00:00","updated_at":"2026-05-18T01:43:01.734140+00:00"}