Physics – Optics
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924513b&link_type=abstract
American Astronomical Society, AAS Meeting #219, #245.13
Physics
Optics
Scientific paper
Direct imaging planet searches are revealing the architecture of planetary systems at large separations (>10 AU) for the first time. Low-mass stars are generally being neglected from these surveys in part because of the dearth of known nearby young M dwarfs compared to young intermediate- and high-mass stars. As a result, there are few constraints on giant planet formation around low-mass stars at moderate (5-100 AU) separations. We present results from an ongoing high-contrast adaptive optics imaging survey of nearby (<30 pc) young (<300 Myr) M dwarfs with Keck-2/NIRC2 and Subaru/HiCIAO. Our survey is sensitive to planet masses of 6 MJup and 2 MJup at separations of 10 AU and 25 AU, respectively, for the median age (100 Myr) and distance (20 pc) of our sample. With a sample size of roughly 70 single M dwarfs, our survey represents the deepest and most extensive imaging search for planets around young low-mass stars to date.
Bowler Brendan P.
Liu Michael C.
Shkolnik Emil L.
Tamura Masafumi
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