{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:BAACQFHU6FL6OM3G4LN66MJRFJ","short_pith_number":"pith:BAACQFHU","schema_version":"1.0","canonical_sha256":"08002814f4f157e73366e2dbef31312a78405b75b6219f1d56c23ed133d1b133","source":{"kind":"arxiv","id":"1910.01652","version":2},"attestation_state":"computed","paper":{"title":"A Dynamical Mass of $70 \\pm 5$ Jupiter Masses for Gliese 229B, the First T Dwarf","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Brendan P. Bowler, Daniella C. Bardalez Gagliuffi, Daniel Michalik, G. Mirek Brandt, Jacqueline Faherty, Timothy D. Brandt, Trent J. Dupuy","submitted_at":"2019-10-03T18:00:02Z","abstract_excerpt":"We combine Keck/HIRES radial velocities, imaging with HiCIAO/Subaru and the Hubble Space Telescope, and absolute astrometry from Hipparcos and Gaia to measure a dynamical mass of $70 \\pm 5$ Jupiter masses for the brown dwarf companion to Gl 229. Gl 229B was the first imaged brown dwarf to show clear signs of methane in its atmosphere. Cooling models have been used to estimate a mass in the range of 20 - 55 Jupiter masses, much lower than our measured value. We argue that our high dynamical mass is unlikely to be due to perturbations from additional unseen companions or to Gl 229B being itself "},"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":"1910.01652","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-03T18:00:02Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"07389b9e47e749c47281a7ef36646386876980bb97afb75ba51a8e3485eac812","abstract_canon_sha256":"70eb5d1ac9420473bc77235a1560942bcd685bfb3176e49b172b446d338331e2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:41:29.022012Z","signature_b64":"io7WO8kDTPiJDnm9UxlU9Cy8owPhmmXqnpa30WnA0rHuR4ZSmIIuvWcUdgs8wNbCU2kilYd5C5siHdTq+RRLCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"08002814f4f157e73366e2dbef31312a78405b75b6219f1d56c23ed133d1b133","last_reissued_at":"2026-07-05T01:41:29.021478Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:41:29.021478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Dynamical Mass of $70 \\pm 5$ Jupiter Masses for Gliese 229B, the First T Dwarf","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Brendan P. Bowler, Daniella C. Bardalez Gagliuffi, Daniel Michalik, G. Mirek Brandt, Jacqueline Faherty, Timothy D. Brandt, Trent J. Dupuy","submitted_at":"2019-10-03T18:00:02Z","abstract_excerpt":"We combine Keck/HIRES radial velocities, imaging with HiCIAO/Subaru and the Hubble Space Telescope, and absolute astrometry from Hipparcos and Gaia to measure a dynamical mass of $70 \\pm 5$ Jupiter masses for the brown dwarf companion to Gl 229. Gl 229B was the first imaged brown dwarf to show clear signs of methane in its atmosphere. Cooling models have been used to estimate a mass in the range of 20 - 55 Jupiter masses, much lower than our measured value. We argue that our high dynamical mass is unlikely to be due to perturbations from additional unseen companions or to Gl 229B being itself "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.01652","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1910.01652/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1910.01652","created_at":"2026-07-05T01:41:29.021542+00:00"},{"alias_kind":"arxiv_version","alias_value":"1910.01652v2","created_at":"2026-07-05T01:41:29.021542+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.01652","created_at":"2026-07-05T01:41:29.021542+00:00"},{"alias_kind":"pith_short_12","alias_value":"BAACQFHU6FL6","created_at":"2026-07-05T01:41:29.021542+00:00"},{"alias_kind":"pith_short_16","alias_value":"BAACQFHU6FL6OM3G","created_at":"2026-07-05T01:41:29.021542+00:00"},{"alias_kind":"pith_short_8","alias_value":"BAACQFHU","created_at":"2026-07-05T01:41:29.021542+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/BAACQFHU6FL6OM3G4LN66MJRFJ","json":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ.json","graph_json":"https://pith.science/api/pith-number/BAACQFHU6FL6OM3G4LN66MJRFJ/graph.json","events_json":"https://pith.science/api/pith-number/BAACQFHU6FL6OM3G4LN66MJRFJ/events.json","paper":"https://pith.science/paper/BAACQFHU"},"agent_actions":{"view_html":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ","download_json":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ.json","view_paper":"https://pith.science/paper/BAACQFHU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1910.01652&json=true","fetch_graph":"https://pith.science/api/pith-number/BAACQFHU6FL6OM3G4LN66MJRFJ/graph.json","fetch_events":"https://pith.science/api/pith-number/BAACQFHU6FL6OM3G4LN66MJRFJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ/action/storage_attestation","attest_author":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ/action/author_attestation","sign_citation":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ/action/citation_signature","submit_replication":"https://pith.science/pith/BAACQFHU6FL6OM3G4LN66MJRFJ/action/replication_record"}},"created_at":"2026-07-05T01:41:29.021542+00:00","updated_at":"2026-07-05T01:41:29.021542+00:00"}