Transiting Exoplanets From The CoRoT Space Mission XVII. The Hot Jupiter CoRoT-17B: A Very Old Planet

  title={Transiting Exoplanets From The CoRoT Space Mission XVII. The Hot Jupiter CoRoT-17B: A Very Old Planet},
  author={Sz. Csizmadia and Claire Moutou and Magali Deleuil and Juan Cabrera and Malcolm Fridlund and Davide Gandolfi and Suzanne Aigrain and Roi Alonso and Jose M. Almenara and Michel Auvergne and Annie Baglin and Pierre Barge and Aldo Stefano Bonomo and Pascal J. Bord{\'e} and François Bouchy and Hans Bruntt and Ludmila Carone and Stefania Carpano and C{\'e}line Cavarroc and William D. Cochran and Hans J. Deeg and Rodrigo F. D{\'i}az and Rudolf Dvorak and Michael Endl and Anders Erikson and Sylvio Ferraz-Mello and Thomas Fruth and J. C. Gazzano and Micha{\"e}l Gillon and E. W. Guenther and Tristan Guillot and A. P. Hatzes and Mathieu Havel and Guillaume H{\'e}brard and Emmanuel Jehin and Laurent Jorda and Alain L{\'e}ger and Antoine Llebaria and Helmut Lammer and Christophe Lovis and Phillip J. MacQueen and Tsevi Mazeh and Marc Ollivier and Martin Paetzold and Didier Queloz and Heike Rauer and Daniel Rouan and Alexandre Santerne and Jodi Schneider and Brandon Tingley and Ruth Titz-Weider and G{\"u}nther Wuchterl},
  journal={Astronomy and Astrophysics},
We report on the discovery of a hot Jupiter-type exoplanet, CoRoT-17b, detected by the CoRoT satellite. It has a mass of $2.43\pm0.30$\Mjup and a radius of $1.02\pm0.07$\Rjup, while its mean density is $2.82\pm0.38$ g/cm$^3$. CoRoT-17b is in a circular orbit with a period of $3.7681\pm0.0003$ days. The host star is an old ($10.7\pm1.0$ Gyr) main-sequence star, which makes it an intriguing object for planetary evolution studies. The planet's internal composition is not well constrained and can… 

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