SSSPM J1102-3431 brown dwarf characterization from accurate proper motion and trigonometric parallax

2008/06/20 by R. Teixeira, C. Ducourant, G. Chauvin +4 · 4 citations
Mathematics · Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Biology #Brown dwarf #Characterization (materials science) #Context (archaeology) #Geometry #Mathematics #Optics #Paleontology #Parallax #Physics #Planet #Proper motion #Stars #Stellar, planetary, and galactic studies #Trigonometry #astro-ph

paper · pdf · doi:10.1051/0004-6361:200810133

accepted for publication in A&A

arxiv created 2008/06/20 · openalex publication_date 2008/07/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. In 2005, Scholz and collaborators discovered, in a proper motion survey, a young brown dwarf SSSPM J1102-3431 (SSSPM J1102) of spectral type M8.5, probable member of the TW Hydrae Association and possible companion of the T Tauri star TW Hya. The physical characterization of SSSPM J1102 was based on the hypothesis that it forms a binary system with TW Hya. The recent discovery of a probable giant planet with a very short-period inside the TW Hya protoplanetary disk, as well as a disk around SSSPM J1102, make it especially interesting and important to measure well the physical parameters of SSSPM J1102.

Citations

• Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 209458
• The Planetary Mass Companion 2MASS1207-3932 B: Temperature, Mass and Evidence for an Edge-On Disk
• An accurate distance to 2M1207Ab
• An Improbable Solution to the Underluminosity of 2M1207B: A Hot Protoplanet Collision Afterglow
• Spitzer Observations of two TW Hydrae Association Brown Dwarfs
• Validation of the new Hipparcos reduction
• Discovery of an M9.5 Candidate Brown Dwarf in the TW Hydrae Association: DENIS J124514.1-442907
• DAOPHOT - A computer program for crowded-field stellar photometry
• A Giant Planet Candidate near a Young Brown Dwarf

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• A HERSCHEL SEARCH FOR COLD DUST IN BROWN DWARF DISKS: FIRST RESULTS
• YOUNG L DWARFS IDENTIFIED IN THE FIELD: A PRELIMINARY LOW-GRAVITY, OPTICAL SPECTRAL SEQUENCE FROM L0 TO L5