Physics
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005nrdd.conf...32s&link_type=abstract
Proceedings of the Miniworkshop on Nearby Resolved Debris Disks. October 19-20, 2005. Space Telescope Science Institute, Baltimo
Physics
Scientific paper
Gaining insights in to the details of planetary system formation requires studying both the emissive properties of dusty circumstellar debris and ascertaining the spatial distribution of circumstellar material without ambiguity. Observations of circumstellar dust-scattered starlight have been difficult because of the very high disk-to-star contrast ratios so, to date, only a small handful of spatially resolved images of debris disks exist. To expand this sample, in HST cycle 13 we conducted a NICMOS coronagraphic debris disk imaging survey (GO/10177) to probe the posited epochs of planetary system formation and evolution.
In part 1, we present the properties of our survey sample targets, outline our reduction techniques, and present upper-limits for non-resolved disks. In this talk (part 2), we present photometrically reliable images of the debris disks resolved in our survey, revealing disk structures as close as 0.3" from their central stars. We also present newly derived properties of the grains in the resolved debris disks.
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