1 citations · 1 across the 1 of their papers we have counts for
6 papers
The Rotational Velocity of Helium-rich Pre-White Dwarfs
T. Rauch, S. Koeper, S. Dreizler +3
Previous investigations on hydrogen-rich white dwarfs generally yield only very small rotational velocities (v_rot sin i). We have analyzed line profiles in high-resolution optical…
Beyond M: Ultracool dwarfs in the Solar Neighbourhood
I. Neill Reid
I review the optical and near-infrared spectral characteristics of the extremely cool dwarfs grouped under the new classification of type L. These include both very low-mass stars…
A Keck/HST Survey for Companions to Low-Luminosity Dwarfs
D. W. Koerner, J. Davy Kirkpatrick, I. N. Reid +1
We present preliminary results of an imaging survey for companions to low-luminosity dwarfs with spectral types ranging from M7 to L9. A K-band study with the Near Infrared Camera…
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-…
Masses and Gravities of Blue Horizontal Branch Stars Revisited
U. Heber, S. Moehler, I. N. Reid
Previous spectroscopic analyses of Blue Horizontal Branch (BHB) stars in six globular clusters revealed too low masses in four clusters when compared to canonical evolutionary theo…