Star-Planet Interactions in X-rays

Details Star-Planet Interactions in X-rays Star-Planet Interactions in X-rays

2010-12-13

arxiv.org/abs/1012.2672v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

to be published in Cool Stars 16 proceedings

Scientific paper

We investigated the coronal activity of planet-hosting stars by means of statistical analysis for a complete sample of stars in the solar neighborhood. We find no observational evidence that Star-Planet Interactions are at work in this sample, at least not at the sensitivity levels of our observations. We additionally test the upsilon Andromedae system, an F8V star with a Hot Jupiter and two other known planets, for signatures of Star-Planet Interactions in the chromosphere, but only detect variability with the stellar rotation period.

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