X-ray Irradiation And Evaporation Of Close-in Exoplanets

Details X-ray Irradiation And Evaporation Of Close-in Exoplanets X-ray Irradiation And Evaporation Of Close-in Exoplanets

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.4406w&link_type=abstract

American Astronomical Society, ESS meeting #2, #44.06

Astronomy and Astrophysics

Astronomy

Scientific paper

I will present a series of X-ray observations of exoplanet systems designed to determine the role of stellar activity in the evolution of close-in planets. In particular, I will present the first detection of an exoplanet transit in X-rays, and show how the X-ray absorption spectrum places new and powerful limits on the evaporation rates of irradiated exoplanets. I will also present new X-ray monitoring observations designed to test the suggestion that the presence of a hot Jupiter can amplify stellar activity and then feedback to enhance mass-loss in close-in systems. Data analysis is currently underway, but the results of this analysis will be available in time for the meeting.

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