Statistics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40096c&link_type=abstract
Spitzer Proposal ID #40096
Statistics
Scientific paper
Spitzer is extending the IRAS legacy by surveying the prevalence of debris disks over all stellar masses, ages, and environments. Hundreds of debris systems have now been detected, and raises the exciting possibility that planet formation is a common outcome of the star formation process. While the statistics of debris disks are becoming well established, the properties of the planetary systems that ignite the collisional cascade to produce the debris dust remain in question. To advance our understanding of the debris disks discovered with Spitzer, we propose to obtain a comprehensive census of debris dust around extrasolar planetary systems. Given that the planetary masses and orbits are known from radial velocity measurements, the proposed observations will establish any empirical relationships between the frequency, temperature, and luminosity of debris disks with planetary mass and orbits. These data will also test basic principles of debris disk models by determining i) if the warm inner disk is truncated by gravitational interactions with planets, ii) whether the expected migration of hot Jupiters disrupts the planetesimal belt, and iii) if massive planets accelerate collisional processing of the planetesimal belt. Any correlations between debris properties and planetary architectures identified from this survey will serve as a template to interpret the larger ensemble of debris systems discovered with Spitzer.
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