Dust Disks around Main Sequence Stars

Details Dust Disks around Main Sequence Stars Dust Disks around Main Sequence Stars

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7233s&link_type=abstract

HST Proposal ID #7233

Other

Hst Proposal Id #7233 Young Stars And Circumstellar Material

Scientific paper

We will observe a selection of mostly main sequence stars which have {a} tau {dust} > 10-3 or {b} other characteristics that suggest the presence of circumstellar dust disks. The observations will be made with the coronagraph to minimize the effects of glare from the bright central star. Our primary filter is the F160W, although the science does not depend critically on the choice of filter. We use dithering by means of a spacecraft roll for best background subtraction. As a primary objective, all images will be examined for the presence of dust disks. An important secondary objective is a search of all images for possible brown dwarfs or high-mass planets. If detections are made, additional observations will be attempted to characterize the physical properties of those objects found.

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