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1 LAOG - Laboratoire d-Astrophysique de Grenoble

Abstract : 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.

Keywords : Extrasolar planets evaporation atmospheres spectroscopy ultraviolet

Author: David Ehrenreich -

Source: https://hal.archives-ouvertes.fr/


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