Sub-giants with planets: A MIPS survey for their Kuiper Belts

Details Sub-giants with planets: A MIPS survey for their Kuiper Belts Sub-giants with planets: A MIPS survey for their Kuiper Belts

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50737k&link_type=abstract

Spitzer Proposal ID #50737

Physics

Scientific paper

A-star debris disks provided the first evidence that exoplanetary systems are common, and these hosts remain the best targets for detection of planetary debris. However, A stars are poor targets for precision Doppler studies, which focus on solar analogs. Consequently, progress from Spitzer in understanding the relationship between debris disks and exoplanets has been modest. Recently, evolved A-type stars (late G/early K subgiants) have been subjected to precision radial velocity measurements and we now know their A-type progenitor stars do host planets. This progress presents a new opportunity to quantify the relationship between debris disk properties and exoplanetary systems. We therefore propose a MIPS 24/70 micron survey of nine evolved stars with known exoplanets. Observations of an additional 30 subgiants in the SPITZER archive will provide the statistical context to interpret these results.

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