{"paper":{"title":"Direct Detection of the Brown Dwarf GJ 802B with Adaptive Optics Masking Interferometry","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Frantz Martinache, James P. Lloyd, John D. Monnier, Michael J. Ireland, Peter G. Tuthill, Steven H. Pravdo, Stuart B. Shaklan","submitted_at":"2006-07-21T20:48:08Z","abstract_excerpt":"We have used the Palomar 200\" Adaptive Optics (AO) system to directly detect the astrometric brown dwarf GJ 802B reported by Pravdo et al. 2005. This observation is achieved with a novel combination of aperture masking interferometry and AO. The dynamical masses are 0.175$\\pm$0.021 M$_\\odot$ and 0.064$\\pm$0.032 M$_\\odot$ for the primary and secondary respectively. The inferred absolute H band magnitude of GJ 802B is M$_H$=12.8 resulting in a model-dependent T$_\\mathrm{eff}$ of 1850 $\\pm$ 50K and mass range of 0.057--0.074 M$_\\odot$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0607516","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"}