Physics
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008noao.prop..371a&link_type=abstract
NOAO Proposal ID #2008B-0371
Physics
Scientific paper
Over the last 3 to 4 years there has been increasing evidence, both theoretical and observational, that the fraction of wide, low-mass companions to spectroscopic binary systems is considerably higher than for single objects. Not only does the fraction of stellar companions increase but also that of substellar companions. We propose a survey to find benchmark brown dwarfs by taking advantage of the high fraction of wide, low-mass companions to tight spectroscopic binaries. We are particularly interested in examining post main sequence systems, as the white dwarf in the system can serve as a means of obtaining an age estimate of any associated companion brown dwarf. Finding such benchmark brown dwarfs is imperative to refining our understanding of these objects, particularly the evolutionary models that are used to extract physical parameters. Only by finding brown dwarfs with independent measurements of parameters such as age, mass, and metallicity can these important models be checked and improved.
Allen Peter
Burgasser Adam
Faherty Jackie
Kirkpatrick Joseph D.
Liebert James
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