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Four nearby L dwarfs
I. Neill Reid, J. Davy Kirkpatrick, J. E. Gizis +5
We present spectroscopic, photometric and astrometric observations of four bright L dwarfs identified in the course of the 2MASS near-infrared survey. Our spectroscopic data extend…
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-…
A Very Low-Luminosity, Very Cool, DC White Dwarf
Hugh Harris, Conard Dahn, Frederick Vrba +4
The star LHS 3250 is found to be a white dwarf at a distance of 30 pc. Its absolute magnitudes (M_V = 15.72; M_bol = 16.2) put it among the least-luminous white dwarfs known. Its o…
L Dwarfs and the Substellar Mass Function
I. N. Reid, J. D. Kirkpatrick, J. Liebert +8
Analysis of initial observations from near-infrared sky surveys has shown that the resulting photometric catalogues, combined with far-red optical data, provide an extremely effect…
On the Nature of the Peculiar Hot Star in the Young LMC Cluster NGC1818
James Liebert
The blue star reported in the field of the young LMC cluster NGC1818 by Elson et al. (1998) has the wrong luminosity and radius to be a "luminous white dwarf" member of the cluster…