3 papers
astro-ph2004
Spectroscopy of Ultra-Cool Dwarfs
K. L. Luhman
Ultra-cool dwarfs have been defined as dwarfs with spectral types of M7 or later (Kirkpatrick, Henry, & Irwin 1997) and thus include the new L and T spectral classes. The previous…
astro-ph2002
The Brown Dwarf Deficit in Taurus: Evidence for a Non-Universal IMF
Cesar Briceno, Kevin Luhman, Lee Hartmann +2
We present the results of a deep, optical/IR wide field imaging survey of selected fields in the nearby (d ~ 140 pc) Taurus star-forming region. We report the discovery of 9 new me…
astro-ph1999
The evolutionary status of The Frosty Leo Nebula
Tyler Bourke, A. R. Hyland, Garry Robinson +1
We present new observational data for IRAS 09371+1212, the Frosty Leo Nebula, in the form of infrared spectra from 2.2-2.5 microns which reveal photopheric bands of CO. The ^12CO/^…