Star-Planet Interaction in the upsilon Andromedae extrasolar planet system

Details Star-Planet Interaction in the upsilon Andromedae extrasolar planet system Star-Planet Interaction in the upsilon Andromedae extrasolar planet system

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2755p&link_type=abstract

Chandra proposal ID #11200015

Physics

Scientific paper

We propose to carry out a 60 ks Chandra/ACIS-S observation of the planet bearing host star ups And to find coronal signatures of Star-Planet Interactions (SPI). ups And is one of the only two known stars with cyclically enhanced optical activity in phase with the planetary orbit. The proposed X-ray observation will establish SPI as a coronal effect, test if there are systematic differences between chromospheric and coronal planet-induced activity profiles and allow conclusions about the amount of energy deposited in the corona by SPI, about the planetary magnetic field and the planet's internal structure, its irradiation from the star and therefore its evaporation rate and lifetime.

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