The structure of Debris Disk around 3-Planet Host Star HD218396

Details The structure of Debris Disk around 3-Planet Host Star HD218396 The structure of Debris Disk around 3-Planet Host Star HD218396

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop..530s&link_type=abstract

Spitzer Proposal ID #530

Computer Science

Scientific paper

Among more than 300 known debris disks, HD218396 (HR 8799) and Fomalhaut are the only debris systems that also harbor planets revealed by direct imaging. The Fomalhaut disk has been well explored by Spitzer given the proximity of the star; however, the disk around HD218396 is poorly studied. We propose to obtain MIPS 24, 70 and 160 micron images and a much deeper IRS spectrum to study the detailed structure of the disk around HD218396. The proposed data will help to better constrain the locations of dust belts. With these observations, we will gain a unique and important perspective on the influence of massive planets on debris disks. These measurements will also be crucial for the interpretation of the hundreds of known debris disks for which we do not have such detailed information on any accompanying planetary systems.

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