{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:3UJZ3VYLV5PHIPSDU63NXS6ILR","short_pith_number":"pith:3UJZ3VYL","schema_version":"1.0","canonical_sha256":"dd139dd70baf5e743e43a7b6dbcbc85c6853737f074946378190da695128db8a","source":{"kind":"arxiv","id":"1504.07750","version":1},"attestation_state":"computed","paper":{"title":"Search with UVES and XSHOOTER for signatures of the low-mass secondary in the post common-envelope binary AA Dor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"(2) Hamburger Sternwarte, (3) NASA Goddard Space Flight Center, Astrophysics, D. Hoyer (1), Eberhard Karls University, Germany, Greenbelt, Hamburg, J. W. Kruk (3) ((1) Institute for Astronomy, K. Werner (1), P. H. Hauschildt (2), T. Rauch (1), Tuebingen, USA)","submitted_at":"2015-04-29T07:58:37Z","abstract_excerpt":"AA Dor is a close, totally eclipsing, post common-envelope binary with an sdOB-type primary and an extremely low-mass secondary, located close to the mass limit of stable central hydrogen burning. Within error limits, it may either be a brown dwarf or a late M-type dwarf.\n  We aim to extract the secondary's contribution to the phase-dependent composite spectra. The spectrum and identified lines of the secondary decide on its nature.\n  In January 2014, we measured the phase-dependent spectrum of AA Dor with XSHOOTER over one complete orbital period. Since the secondary's rotation is presumable "},"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":"1504.07750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-29T07:58:37Z","cross_cats_sorted":[],"title_canon_sha256":"c1a369ceee16c9c93c0a0fba8aea7b517ad2b892a431eada843edbd7445eae5b","abstract_canon_sha256":"9d4ce30a062696f45d7ca0c2d6a6d21154c3f1ab0f1915119bddc2ecfab44bd9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:32.354408Z","signature_b64":"SFb88VjkwGSAQT++Inq5wB3NsXh7xt85IXsedswGauoB1gDZwvvtK5beg6TU+APAeJZeockf88ELVPE3Ja75DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd139dd70baf5e743e43a7b6dbcbc85c6853737f074946378190da695128db8a","last_reissued_at":"2026-05-18T02:17:32.353669Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:32.353669Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Search with UVES and XSHOOTER for signatures of the low-mass secondary in the post common-envelope binary AA Dor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"(2) Hamburger Sternwarte, (3) NASA Goddard Space Flight Center, Astrophysics, D. Hoyer (1), Eberhard Karls University, Germany, Greenbelt, Hamburg, J. W. Kruk (3) ((1) Institute for Astronomy, K. Werner (1), P. H. Hauschildt (2), T. Rauch (1), Tuebingen, USA)","submitted_at":"2015-04-29T07:58:37Z","abstract_excerpt":"AA Dor is a close, totally eclipsing, post common-envelope binary with an sdOB-type primary and an extremely low-mass secondary, located close to the mass limit of stable central hydrogen burning. Within error limits, it may either be a brown dwarf or a late M-type dwarf.\n  We aim to extract the secondary's contribution to the phase-dependent composite spectra. The spectrum and identified lines of the secondary decide on its nature.\n  In January 2014, we measured the phase-dependent spectrum of AA Dor with XSHOOTER over one complete orbital period. Since the secondary's rotation is presumable "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07750","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":"1504.07750","created_at":"2026-05-18T02:17:32.353779+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.07750v1","created_at":"2026-05-18T02:17:32.353779+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07750","created_at":"2026-05-18T02:17:32.353779+00:00"},{"alias_kind":"pith_short_12","alias_value":"3UJZ3VYLV5PH","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"3UJZ3VYLV5PHIPSD","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"3UJZ3VYL","created_at":"2026-05-18T12:29:02.477457+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/3UJZ3VYLV5PHIPSDU63NXS6ILR","json":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR.json","graph_json":"https://pith.science/api/pith-number/3UJZ3VYLV5PHIPSDU63NXS6ILR/graph.json","events_json":"https://pith.science/api/pith-number/3UJZ3VYLV5PHIPSDU63NXS6ILR/events.json","paper":"https://pith.science/paper/3UJZ3VYL"},"agent_actions":{"view_html":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR","download_json":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR.json","view_paper":"https://pith.science/paper/3UJZ3VYL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.07750&json=true","fetch_graph":"https://pith.science/api/pith-number/3UJZ3VYLV5PHIPSDU63NXS6ILR/graph.json","fetch_events":"https://pith.science/api/pith-number/3UJZ3VYLV5PHIPSDU63NXS6ILR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR/action/storage_attestation","attest_author":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR/action/author_attestation","sign_citation":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR/action/citation_signature","submit_replication":"https://pith.science/pith/3UJZ3VYLV5PHIPSDU63NXS6ILR/action/replication_record"}},"created_at":"2026-05-18T02:17:32.353779+00:00","updated_at":"2026-05-18T02:17:32.353779+00:00"}