Other
Scientific paper
Jun 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007lyot.confe..32k&link_type=abstract
Proceedings of the conference In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21s
Other
Scientific paper
Debris disks represent the most visible evidence of solar systems around other stars, having been created from the collisions of planetesimals such as comets and asteroids. They show evidence of planetary mass companions and interactions with nearby stars by the presence of gaps, clearings, and warps. Unfortunately, they are far from obvious, and even the brightest of these disks reflect, in total, far less than one percent of the stellar light. Imaging them requires high contrast optical systems capable of suppressing the diffraction pattern from the telescope using a coronagraph, along with additional post-processing to remove residual instrumentally scattered light. The high resolution and stable optical system of the Hubble Space Telescope allows it to image disks orders of magnitude too faint to be seen from the ground, and over 70% of the debris disks imaged in scattered light to date have been seen only with HST. I will present a summary of the capabilities of HST's NICMOS, STIS, and ACS coronagraphs and review the results of the debris disk imaging observations made using them.
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