Eccentricities of Extrasolar Planets and Implications for Planet Formation Theory

Details Eccentricities of Extrasolar Planets and Implications for Planet Formation Theory Eccentricities of Extrasolar Planets and Implications for Planet Formation Theory

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916303f&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #163.03; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

The discovery of 200 extrasolar planets around solar-like stars has revealed an unexpected diversity of planets that continues to challenge theories of planet formation. In particular, most known extrasolar planets have significant eccentricities, including many massive giant planets. In this poster, we present a Bayesian analysis of the radial velocity observations taken by the California and Carnegie Planet Search at Keck and recently published by Butler et al. (2006). We investigate the observational constraints for the eccentricity distribution of giant extrasolar planets and discuss the implications for theories of planet formation. We outline how future radial velocity observations can test models of planet formation.
Support for E.B.F. was provided by NASA through Hubble Fellowship grant HST-HF-01195.01A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS 5-26555.

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