Computer Science
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009noao.prop..425d&link_type=abstract
NOAO Proposal ID #2009B-0425
Computer Science
Scientific paper
We propose to use the SOAR Optical imager (SOI) at the SOAR 4 meter telescope to obtain VRI photometry for a sample of 125 Very Low Mass (VLM)stars and high mass brown dwarfs. All targets are within 25 parsecs of the Sun. As part of a comprehensive effort involving several observatories we plan on obtaining trigonometric parallaxes and mapping the orbits of any newly discovered binaries in the sample. Much work has been done in the field of Very Low Mass stars during the last decade, but the fundamental question of where the exact boundary between stars and sub-stellar objects lies is still largely unanswered. This is due to the lack of reliable observational tests that discriminate between the most massive brown dwarfs and the least massive stars. Characterizing objects near this boundary is the fundamental aspect of the PI's doctoral thesis. We will use the photometry to place these Very Low Mass objects in color-magnitude diagrams and to refine existing bolometric corrections.
Dieterich Sergio B.
Henry Todd J.
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