Planet-Star Interactions in Eccentric Sytems

Details Planet-Star Interactions in Eccentric Sytems Planet-Star Interactions in Eccentric Sytems

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop..111b&link_type=abstract

XMM-Newton Proposal ID #06530302

Physics

Stars, White Dwarfs, Solar System, Hd 108147

Scientific paper

Extrasolar planets orbiting on short orbital distances have violent planet-star interactions that determine their survival and evolution. We propose to utilize the unique geometry of giant planets in elliptical orbits to study planet-star interactions with XMM. Statistical surveys suggest an exponential relation between X-ray flux and the orbital distance, and we propose to measure X-ray variability along the orbits of various planetary systems. Our XMM observations will determine whether or not the planets have magnetospheres, sample the stellar wind and quantitatively assess planet-star interaction models. Even more so, these observations might evoke a new way of discovering exoplanets with XMM.

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