Physics
Scientific paper
Feb 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008noao.prop..537f&link_type=abstract
NOAO Proposal ID #2008A-0537
Physics
Scientific paper
Disks of freshly produced dust grains provide observational clues into the nature of planet formation and the evolution of circumstellar material. The size and space distributions of the grains in debris disks are linked to the physical processes shaping the disk and can acts as probes of unseen planets. Optical/near-IR scattered-light and thermal imaging of spatially resolved structures provide complementary means of measuring these effects. We propose to use T-ReCS and Michelle on the Gemini telescopes to spatially resolve the mid-IR thermal emission arising from warm dust in several nearby debris disks. Optimized for high sensitivity and spatial resolution, these instruments have the greatest potential to reveal the architectures of debris disks through the distribution of their warm grains. These observations will remove degeneracies between disk architecture and grain properties, test for the presence of planets, and connect architectures of planetary systems to processes governing their formation. The systems newly resolved by this work will be important for future spectroscopic study of grain mineralogy.
Fitzgerald Michael P.
Graham James R.
Kalas Paul
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