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Two TW Hydrae Association Brown Dwarfs
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Stars/galaxy News
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5
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7433
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Title: Spitzer Observations of two TW Hydrae Association Brown Dwarfs
Authors: Basmah Riaz, John E. Gizis, Abraham Hmiel
Researchers present Spitzer Space Telescope observations of two TW Hydrae Association brown dwarfs, 2MASSW J1207334-393254 and 2MASSW J1139511-3...
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Cha 110913-773444
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Stars/galaxy News
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1
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102226
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Astronomers using NASA's Spitzer Space Telescope have discovered of the smallest known brown dwarf.
The brown dwarf contains only about 8 times the mass...
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GJ 802B
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Stars/galaxy News
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0
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1898
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Title: Dynamical Mass of GJ 802B: a brown dwarf in a triple system Authors: M.J. Ireland, A. Kraus, F. Martinache, J.P. Lloyd, P.G. Tuthill We report a dynamical measurement of the mass of the brown dwarf GJ 802B using aperture-masking interferometry and astrometry. In addition, we report the disc...
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Brown Dwarfs
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Stars/galaxy News
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71
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63029
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After decades of searching, astronomers discovered the first definite brown dwarf only ten years ago. Now, a new analysis of Hubble Space Telescope data implies our Galaxy has almost as many of these failed stars as it does normal stars like the Sun.
The Sun and most other stars power themselves by...
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2MASS 1534-2952AB
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Stars/galaxy News
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0
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1451
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Astronomers Weigh the Coldest Brown Dwarfs Astronomers have used ultrasharp images obtained with the Keck Telescope and Hubble Space Telescope to determine for the first time the masses of the coldest class of "failed stars," a.k.a. brown dwarfs. With masses as light as 3 percent the m...
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2MASS J16262034+3925190
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Stars/galaxy News
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2
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1933
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The Oldest Brown Dwarf Most of the halo stars previously known are members of stellar aggregates called globular clusters. Recently, however, large deep sky surveys have improved our knowledge on old halo stars living outside those clusters. Halo stars with masses from 10 times to only a few tenth...
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CFBDS J005910.83-011401.3
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Stars/galaxy News
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2
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2163
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An international team of astronomers has discovered the coldest brown dwarf star ever observed. This finding, to be published in Astronomy & Astrophysics, is a new step toward filling the gap between stars and planets. An international team led by French and Canadian astronomers has just di...
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SSTB213 J041757
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Stars/galaxy News
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3
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1784
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The best proto-brown dwarf candidate so far A recent study has found the best proto-brown dwarf candidate known to date. Calar Alto has contributed key data to this finding. This object, known as SSTB213 J041757, is placed in the constellation of Taurus, inside the dark cloud Barnard 213, at a dista...
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SDSS J1416+13AB
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Stars/galaxy News
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4
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5897
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Title: The discovery of a very cool binary system Authors: Ben Burningham, S. K. Leggett, P.W. Lucas, D.J. Pinfield, R.L. Smart, A.C. Day-Jones, H.R.A. Jones, D.Murray, E. Nickson, M. Tamura, Z. Zhang, N. Lodieu, C.G. Tinney, M. R. Zapatero Osorio We report the discovery of a very cool d/sdL7+T7.5...
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2M J044144
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Stars/galaxy News
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2
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2892
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Mysterious planet-like object reveals its surprising identity A mysterious planet-like object orbiting a not-quite-starlike "brown dwarf" is the most recent enigma discovered by astronomers with their ever-more powerful telescopes. Kamen Todorov, a graduate student at Penn St...
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TWA 5A
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Stars/galaxy News
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2
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5392
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Title: Orbital motion of the young brown dwarf companion TWA 5 B Authors: R. Neuhäuser (1), T. O. B. Schmidt (1), V. V. Hambaryan (1), N. Vogt (2 and 3) ((1) Astrophysikalisches Institut und Universitäts-Sternwarte, Jena, Germany, (2) Departamento de Física y Astronomía, Valparaíso, Chile, (3) U...
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WISEPC J045853.90+643451.9
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Stars
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2
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2741
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NASA's Wide-field Infrared Survey Explorer, or WISE, has eyed its first cool brown dwarf: a tiny, ultra-cold star floating all alone in space. WISE is scanning the whole sky in infrared light, picking up the glow of not just brown dwarfs but also asteroids, stars and galaxies. It has sent millions of...
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GJ569Bab
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Stars
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0
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1511
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Title: Lucky Imaging Adaptive Optics of the brown dwarf binary GJ569Bab Authors: Autors: B. Femenía (1 and 2), R. Rebolo (1 and 3), J. A. Pérez-Prieto (1), S. R. Hildebrandt (1 and 4), L. Labadie (1 and 2), A. Pérez-Garrido (5), V. J. S. Béjar (1 and 2), A. Díaz-Sánchez (5), I. Villó (5), A. Oscoz (1), R. L...
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CFBDSIR J1458+1013B
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Stars/galaxy News
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4
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6342
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Title: CFBDSIR J1458+1013B: A Very Cold (>T10) Brown Dwarf in a Binary System Authors: Michael C. Liu, Philippe Delorme, Trent J. Dupuy, Brendan P. Bowler, Loic Albert, Etienne Artigau, Celine Reyle, Thierry Forveille, Xavier Delfosse We have identified CFBDSIR J1458+10 as a 0.11" bin...
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WISE J0254+0223 and WISE J1741+2553
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Stars
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2
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3303
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Title: Two very nearby (d ~ 5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data Authors: R.-D. Scholz, G. Bihain, O. Schnurr, J. Storm (Leibniz-Institut für Astrophysik Potsdam (AIP)) Aims: WISE provides an infrared all-sky survey which aims at comp...
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2MASS J05352184-0546085
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Stars
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0
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1292
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Title: High-Resolution Spectroscopy during Eclipse of the Young Substellar Eclipsing Binary 2MASS 0535-0546. II. Secondary Spectrum: No Evidence that Spots Cause the Temperature Reversal Authors: Subhanjoy Mohanty, Keivan G. Stassun We present high-resolution optical spectra of the youn...
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Brown Dwarf Binaries
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Stars
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0
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1269
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Title: WISE Brown Dwarf Binaries: The Discovery of a T5+T5 and a T8.5+T9 System Authors: Christopher R. Gelino (IPAC), J. Davy Kirkpatrick (IPAC), Michael C. Cushing (JPL), Peter R. Eisenhardt (JPL), Roger L. Griffith (IPAC), Amanda K. Mainzer (JPL), Kenneth A. Marsh (IPAC), Michael F. Skrutski...
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Brown Dwarf Companions
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Stars/galaxy News
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1
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1313
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Title: Statistical Properties of Brown Dwarf Companions: Implications for Different Formation Mechanisms Authors: Bo Ma, Jian Ge The mass domain where massive extrasolar planets and brown dwarfs overlap is still poorly understood due to the paucity of brown dwarfs orbiting close to solar-typ...
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