4 papers · 1 filter
Parallaxes of Brown Dwarfs at USNO
H. C. Harris, C. C. Dahn, F. J. Vrba +10
Trigonometric parallaxes have been measured by Dahn et al. (2002) for 28 cool dwarfs and brown dwarfs, including 17 L dwarfs and three T dwarfs. Broadband CCD and near-IR photometr…
Two nearby M dwarf binaries from 2MASS
J. E. Gizis, D. G. Monet, I. N. Reid +2
We report the discovery of two binary M dwarf systems in the immediate solar neighborhood using 2MASS. The first is an M6.5 companion to the nearby G star HD 86728 (Gl 376). The kn…
Discovery of Four Field Methane (T-type) Dwarfs with 2MASS
A. J. Burgasser, J. D. Kirkpatrick, M. E. Brown +8
We report the discovery of four field methane (T-type) brown dwarfs using 2MASS survey data. One additional methane dwarf, previously discovered by SDSS, was also identified. Near-…
The Full-sky Astrometric Mapping Explorer -- Astrometry for the New Millennium
Scott D. Horner, Marvin E. Germain, Thomas P. Greene +10
FAME is designed to perform an all-sky, astrometric survey with unprecedented accuracy. It will create a rigid astrometric catalog of 4x10^7 stars with 5 < m_V < 15. For bright sta…