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20012006
most citedPhysical parameters of two very cool T dwarfs

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astro-ph2004

Preliminary Parallaxes of 40 L and T Dwarfs from the U.S. Naval Observatory Infrared Astrometry Program

F. J. Vrba, A. A. Henden, C. B. Luginbuhl +12

We present preliminary trigonometric parallaxes and proper motions for 22 L dwarfs and 18 T dwarfs measured using the ASTROCAM infrared imager. Relative to absolute parallax correc…