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A New Population of Brown Dwarfs
(Astronomical Society of the Pacific, 1998)
A large area deep survey for brown dwarfs from digitally stacked 1.2m Schmidt plates has revealed a population of very red stars (R-I>3). On the basis of their colours, near IR spectra and their luminosity estimates from ...
A Comparison of the Infrared Spectra of Two Very Late-type M Dwarfs with Different Gravities
(Astronomical Society of the Pacific, 1998)
We present observations obtained during the commissioning of the upgraded Cooled Grating Spectrometer 4 on the UK Infrared Telescope on Mauna Kea, of the very low-mass objects TVLM 513-46546 and Gl 569B. Spectra were taken ...
Photospheric Dust in Cool Dwarfs
(Astronomical Society of the Pacific, 1998)
We investigate the optical and infrared spectra for a range of cool dwarfs. For M dwarfs we find that the match between observation and theory is much improved when comparisons are made with models allowing for the formation ...
A Young Population of Brown Dwarfs
(Astronomical Society of the Pacific, 1998)
In a recent survey for faint red stars from a digital stack of Schmidt plates a number of candidate objects were identified. Parallax's for three of these objects have been reported showing them to have luminosities which ...
The Eclipsing Binary System CM Draconis
(Astronomical Society of the Pacific, 1998)
We compare observations from 0.40 to 2.41um of the binary system CM Draconis with synthetic spectra computed using the stellar atmosphere code PHOENIX.