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Cataclysmic Variables from SDSS I. The First Results
P. Szkody, S. F. Anderson, M. Agueros +27
The commissioning year of the Sloan Digital Sky Survey has demonstrated that many cataclysmic variables have been missed in previous surveys with brighter limits. We report the ide…
L Dwarfs Found in Sloan Digital Sky Survey Commissioning Data II. Hobby-Eberly Telescope Observations
Donald P. Schneider, Gillian R. Knapp, Suzanne L. Hawley +21
Low dispersion optical spectra have been obtained with the Hobby-Eberly Telescope of 22 very red objects found in early imaging data from the Sloan Digital Sky Survey. The objects…
Infrared Photometry of Late-M, L, and T Dwarfs
S. K. Leggett, D. A. Golimowski, X. Fan +2
We present ZJHKL'M' photometry of a sample of 58 late-M, L, and T dwarfs, most of which are identified from the Sloan Digital Sky Survey and the Two Micron All-Sky Survey. Near-inf…
Towards Spectral Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and Analysis
T. R. Geballe, G. R. Knapp, S. K. Leggett +2
We present 0.6-2.5um, R~400 spectra of twenty-seven cool, low luminosity stars and substellar objects. Based on these and previously published spectra we develop a preliminary spec…
High-velocity white dwarfs: thick disk, not dark matter
I. Neill Reid, Kailash C. Sahu, Suzanne L. Hawley
We present an alternative interpretation of the nature of the extremely cool, high-velocity white dwarfs identified by Oppenheimer et al (2001) in a high-latitude astrometric surve…