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arxiv: 0807.1885 · v1 · submitted 2008-07-11 · 🌌 astro-ph

Evaporation of extrasolar planets

classification 🌌 astro-ph
keywords extrasolarplanetatmosphereobservationalatomiccomingdetecteddiscussed
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Atomic hydrogen escaping from the extrasolar giant planet HD209458b provides the largest observational signature ever detected for an extrasolar planet atmosphere. In fact, the upper atmosphere of this planet is evaporating. Observational evidences and interpretations coming from various models are reviewed. Implications for exoplanetology are discussed.

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