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arXiv · 1106.4393

Transiting exoplanets from the CoRoT space mission XVII. The hot Jupiter CoRoT-17b: a very old planet

Sz. Csizmadia·C. Moutou·M. Deleuil·J. Cabrera·M. Fridlund·D. Gandolfi·S. Aigrain·R. Alonso·J. M. Almenara·M. Auvergne·A. Baglin·P. Barge·A. S. Bonomo·P. Borde·F. Bouchy·H. Bruntt·L. Carone·S. Carpano·C. Cavarroc·W. Cochran·H. J. Deeg·R. F. Diaz·R. Dvorak·M. Endl·A. Erikson·S. Ferraz-Mello·Th. Fruth·J. C. Gazzano·M. Gillon·E. W. Guenther·T. Guillot·A. Hatzes·M. Havel·G. Hebrard·E. Jehin·L. Jorda·A. Leger·A. Llebaria·H. Lammer·C. Lovis·P. J. MacQueen·T. Mazeh·M. Ollivier·M. Paetzold·D. Queloz·H. Rauer·D. Rouan·A. Santerne·J. Schneider·B. Tingley·R. Titz-Weider·G. Wuchterl
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Abstract

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 range from pure H/He to one that can contain $\sim$380 earth masses of heavier elements.

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Sz. Csizmadia, C. Moutou, M. Deleuil, J. Cabrera, M. Fridlund, D. Gandolfi, S. Aigrain, R. Alonso, J. M. Almenara, M. Auvergne, A. Baglin, P. Barge, A. S. Bonomo, P. Borde, F. Bouchy, H. Bruntt, L. Carone, S. Carpano, C. Cavarroc, W. Cochran, H. J. Deeg, R. F. Diaz, R. Dvorak, M. Endl, A. Erikson, S. Ferraz-Mello, Th. Fruth, J. C. Gazzano, M. Gillon, E. W. Guenther, T. Guillot, A. Hatzes, M. Havel, G. Hebrard, E. Jehin, L. Jorda, A. Leger, A. Llebaria, H. Lammer, C. Lovis, P. J. MacQueen, T. Mazeh, M. Ollivier, M. Paetzold, D. Queloz, H. Rauer, D. Rouan, A. Santerne, J. Schneider, B. Tingley, R. Titz-Weider, G. Wuchterl. 2011-06-22. Transiting exoplanets from the CoRoT space mission XVII. The hot Jupiter CoRoT-17b: a very old planet. https://doi.org/10.1051/0004-6361/201117009

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