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Star-Planet Interactions in X-rays

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arxiv 1012.2672 v1 pith:FTTTEJ4Z submitted 2010-12-13 astro-ph.SR

Star-Planet Interactions in X-rays

classification astro-ph.SR
keywords interactionsstar-planetsamplestarsactivityadditionallyanalysisandromedae
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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