Searching for very low-mass stars and brown dwarfs with DENIS

Details Searching for very low-mass stars and brown dwarfs with DENIS Searching for very low-mass stars and brown dwarfs with DENIS

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..135...41d&link_type=abstract

Astronomy and Astrophysics Supplement, v.135, p.41-56

Astronomy and Astrophysics

Astrophysics

89

Stars: Low-Mass, Brown Dwarfs, Stars: Luminosity Function, Mass Function, Infrared: Stars, Surveys

Scientific paper

We present the results of infrared spectroscopic observations of a sample of very low-mass stars and brown dwarf candidates detected in a 230 square degree area by the DENIS (DEep Near Infrared Southern sky; Epchtein, 1997) survey. We find that objects as faint as the faintest known stars are easily detected by DENIS. This sample also includes three members of the new ``L'' dwarf class, one of which was the first confirmed isolated field brown dwarf. As this data represents ~ 1% of the total DENIS survey area, the completed survey can be expected to have a dramatic impact on the study of the faintest stars and brown dwarfs. In particular, it should detect ~ 300 of the new and poorly understood ``L'' class of dwarfs. Based on observations made at the Anglo-Australian Telescope, Siding Spring. Figures 2 to 5 are only available at the http://www.edpsciences.com

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