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News Release Archive:

News Release 106 of 951

June 28, 2012 09:00 AM (EDT)

News Release Number: STScI-2012-23

Hubble, Swift Detect First-Ever Changes in an Exoplanet Atmosphere

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Image: Exoplanet HD 189733b (Artist's Illustration)

Exoplanet HD 189733b (Artist's Illustration)STScI-PRC2012-23a Artist's Concept

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This artist's rendering illustrates the evaporation of HD 189733b's atmosphere in response to a powerful eruption from its host star. NASA's Hubble Space Telescope detected the escaping gases and NASA's Swift satellite caught the stellar flare.

The international team of astronomers in this study consists of A. Lecavelier des Etangs (Institut d'astrophysique de Paris, CNRS, UPMC, France), V. Bourrier (Institut d'astrophysique de Paris, CNRS, UPMC, France), P. J. Wheatley (Department of Physics, University of Warwick, UK), H. Dupuy (Institut d'astrophysique de Paris, CNRS, UPMC, France), D. Ehrenreich (Institut de Planetologie et d'Astrophysique de Grenoble, UJF/CNRS, Grenoble, France), A. Vidal-Madjar (Institut d'astrophysique de Paris, CNRS, UPMC, France), G. Hebrard (Institut d'astrophysique de Paris, CNRS, UPMC, France), G. E. Ballester (Lunar and Planetary Laboratory, University of Arizona, USA), J.-M. Desert (Harvard-Smithsonian Center for Astrophysics, USA), R. Ferlet (Institut d'astrophysique de Paris, CNRS, UPMC, France), and D. K. Sing (Astrophysics Group, School of Physics, University of Exeter, UK).

Object Name: HD 189733b

Image Type: Artwork

Illustration Credit: NASA Goddard Space Flight Center

Science Credit: NASA, ESA, A. Lecavelier des Etangs (CNRS-UMPC, France), and P. Wheatley (University of Warwick)

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