Physics
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7226b&link_type=abstract
HST Proposal ID #7226
Physics
Hst Proposal Id #7226 Cool Stars
Scientific paper
We propose to use NICMOS to search for massive planets around nearby, young main sequence stars. We will use Camera 2 and the coronagraph to search from 0.3" to 3" at the wavelength band of 1.4-1.8um {F160W} which corresponds to strong emission in the brown dwarf candidates GL 229B and GD 165B as well as to strong reflections in Jupiter and Titan. Because of the extreme youth of these objects, any low-mass brown dwarf and planetary companions will still be in a higher luminosity phase and thus easily detectable. The lower mass limit depends on age, distance, and spectral type, but can be as low as 3-5 M_Jupiter for targets in our sample. Follow-up observations of candidate companions will provide proof of true physical association with the primary. The typical separations observable with NICMOS are near the empirical maximum in the binary distribution of stars { 20-40 AU}, which also corresponds to the mean distance of the giant planets in our own solar system.
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