Other
Scientific paper
Jul 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000hst..prop.8573l&link_type=abstract
HST Proposal ID #8573
Other
Hst Proposal Id #8573 Star Formation
Scientific paper
We propose to use deep WFPC2 images to search for young giant planets and brown dwarfs around ~100 low-mass stars and brown dwarfs in the nearby cluster IC 348. This cluster's age, 1-10 Myr, makes it perfectly suited for detecting such companions. While stars in star-forming regions such as Orion and Taurus are still surrounded by thick proto-planetary disks, the stars in IC 348 are old enough for most of the disks to have dissipated, yet young enough so that the newly-formed brown dwarfs and giant planets are still very luminous. By observing intrinsically faint, low-mass primaries, we should detect companions down to 3 and 7 M_Jup at separations of 90 and 30 AU. When the results of this program are combined with other studies of planets at smaller separations around older, more massive primaries, we will better understand the properties of planetary systems as a function of primary mass and how they evolve from birth to the age of the solar system. Furthermore, because low-mass stars and brown dwarfs exist in such large numbers, this program is important in determining the frequency of planetary systems in the universe.
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