Transiting Exoplanets From The CoRoT Space Mission XII. CoRoT-12B: A Short-Period Low-Density Planet Transiting A Solar Analog Star

Gillon, M.; Hatzes, A.; Csizmadia, S.; Fridlund, M.; Deleuil, M.; Aigrain, S.; Alonso, R.; Auvergne, M.; Baglin, A.; Barge, P.; Barnes, S. I.; Bonomo, A. S.; Borde, P.; Bouchy, F.; Bruntt, H.; Cabrera, J.; Carone, L.; Carpano, S.; Cochran, W. D.; Deeg, H. J.; Dvorak, R.; Endl, M.; Erikson, A.; Ferraz-Mello, S.; Gandolfi, D.; Gazzano, J. C.; Guenther, E.; Guillot, T.; Havel, M.; Hebrard, G.; Jorda, L.; Leger, A.; Llebaria, A.; Lammer, H.; Lovis, C.; Mayor, M.; Mazeh, T.; Montalban, J.; Moutou, C.; Ofir, A.; Ollivier, M.; Patzold, M.; Pepe, F.; Queloz, D.; Rauer, H.; Rouan, D.; Samuel, B.; Santerne, A.; Schneider, J.; Tingley, B.; Udry, S.; Weingrill, J.; Wuchterl, G.

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Date

2010

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Abstract

We report the discovery by the CoRoT satellite of a new transiting giant planet in a 2.83 days orbit about a V = 15.5 solar analog star (M(*) = 1.08 +/- 0.08 M(circle dot), R(*) = 1.1 +/- 0.1 R(circle dot), T(eff) = 5675 +/- 80 K). This new planet, CoRoT-12b, has a mass of 0.92 +/- 0.07 M(Jup) and a radius of 1.44 +/- 0.13 R(Jup). Its low density can be explained by standard models for irradiated planets.

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Gillon, Michaël, A. Hatzes, Sz Csizmadia, M. Fridlund, M. Deleuil, S. Aigrain, R. Alonso et al. >Transiting exoplanets from the CoRoT space mission-XII. CoRoT-12b: a short-period low-density planet transiting a solar analog star.> Astronomy & Astrophysics, Vol. 520 (2010): A97.

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