An Edge-on Disk around a Brown Dwarf?

Details An Edge-on Disk around a Brown Dwarf? An Edge-on Disk around a Brown Dwarf?

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10511l&link_type=abstract

HST Proposal ID #10511

Physics

Hst Proposal Id #10511 Star Formation

Scientific paper

We have recently discovered a young brown dwarf in the Taurus star-forming region that exhibits several characteristics {very faint for its spectral type, forbidden emission lines, anomalous near-IR colors} that are often observed in stars occulted by edge-on circumstellar disks. We propose to determine if an edge-on disk is indeed present by obtaining high-resolution images of this brown dwarf with ACS/HRC on HST. If the disk is detected, we will constrain its physical properties, particularly its diameter, by fitting the images with the predictions of our models of brown dwarfs occulted by circumstellar disks. These observations could potentially provide the first direct measurement of the size of a disk around a brown dwarf, which would comprise a fundamental test of models for the formation of these objects {e.g., embryo ejection}.

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