Systematic effects of star-planet interaction

Details Systematic effects of star-planet interaction Systematic effects of star-planet interaction

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...94p&link_type=abstract

XMM-Newton Proposal ID #06723901

Astronomy and Astrophysics

Astronomy

Stars, White Dwarfs, Solar System, Hd189733

Scientific paper

In 2009 we used XMM-Newton to observe the ''hot Jupiter" HD189733b during a secondary eclipse. Basing on that observation we have published two interesting results: 1) a distinct softening of the spectrum at mid eclipse and 2) a post eclipse flare coincident with model predictions of the appearance of a magnetic footpoint on the rising limb. That single observation cannot firm evidence of a causal relation with phase and Star-Planet Interaction. We propose to re-observe this system during secondary eclipses four times in order to establish the systematic nature of these features. We propose to observe also the high eccentricity system GJ 436 at periastron as pathfinder for SPI in hot neptune planets.

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