AAS 207th Meeting, 8-12 January 2006
Session 95 From Here to Eternity: The Spitzer Legacy Programs
Special Session, Tuesday, 2:00-3:30pm, January 10, 2006, Ballroom/Salon 2

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[95.03] FEPS (Formation and Evolution of Planetary Systems) Update

D. E. Backman (SOFIA/SETI Institute), M. R. Meyer (U. Arizona), L. A. Hillenbrand (Caltech), FEPS Spitzer Legacy Team

The ``Formation and Evolution of Planetary Systems" (FEPS) team has observed 330 nearby solar-type stars ranging in age from 3 Myr to 3 Gyr, using all 3 Spitzer instruments to study the evolution of circumstellar dust and gas. Recent FEPS results will be reviewed in brief, including: 1) over-all detection statistics compared with solar system evolutionary models and also with results from other Spitzer teams, 2) discovery of a 30 Myr old G star with substantial dust mass at ``asteroidal" temperatures but no detectable material at ``Kuiper Belt" temperatures, 3) very low limits on gas mass around another particularly dusty 30 Myr-old G star, 4) constraints on dissipation of primordial disks in terrestrial planet zones around stars younger than 30 Myr, and 5) detections and limits on planetary debris around 100 Myr-old solar-type Pleiades members. The Spitzer Legacy program is funded by NASA.

If you would like more information about this abstract, please follow the link to http://feps.as.arizona.edu. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: dbackman@sofia.usra.edu

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