NICMOS Differential Imaging Search for Planetary Mass Companions to Nearby Young Brown Dwarfs

Details NICMOS Differential Imaging Search for Planetary Mass Companions to Nearby Young Brown Dwarfs NICMOS Differential Imaging Search for Planetary Mass Companions to Nearby Young Brown Dwarfs

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10208b&link_type=abstract

HST Proposal ID #10208

Computer Science

Hst Proposal Id #10208 Cool Stars

Scientific paper

We propose to use the differential spectral imaging capability of HST/NICMOS {NIC1} to search for planetary mass companions. We target the twelve most nearby {within 30 pc}, isolated {no known close companion}, and young {< 1Gyr} brown dwarfs. All of them have spectral type L and show signs of Lithium absorption, which clearly proves their substellar nature and youth. Planetary mass companions with masses down to 6 Jupiter masses, and at separations larger than 3 A.U. are bright enough for a direct detection with HST/NICMOS using the spectral differential imaging technique in two narrow-band filters placed on and off molecular bands. The proposed project has the potential to lead to the first direct detection of a planetary mass object in orbit around a nearby brown dwarf.

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