Physics – Optics
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21944618b&link_type=abstract
American Astronomical Society, AAS Meeting #219, #446.18
Physics
Optics
Scientific paper
Among the key projects of the ESO Herschel mission is a survey that searches for evidence of associated debris disks among nearby main sequence stars. The DEBRIS sample covers nearly 450 stars ranging from spectral type A0 through late M-stars. To model properly the far-infrared results, it is important to know whether the candidate stars have companions or not. To this end, we have undertaken a survey of nearly 300 of the DEBRIS stars that are visible from the northern hemisphere using the Shane 3-meter telescope at Lick Observatory. Our observations are done in the J, H, and K bands with the Shane adaptive optics system and the Lick Observatory IRCAL (a near-infrared IR camera). These observations allow us to look for previously undetected companions in the DEBRIS sample, down to possible separations as small as a few AU between the primary and companion. We present our current results for nearly 200 stars and discuss future planned observations.
Butner Harold M.
DEBRIS Team
Duchene Gaspard
Leisure G. S.
Rodriguez David
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