ESA Science & Technology - Transiting exoplanets from the CoRoT space mission - XVI. The hot Jupiter CoRoT-17b: a very old planet

Publication date: 15 June 2011

Authors: Sz. Csizmadia et al.

Journal: Astronomy & Astrophysics
Volume: 531
Page: A41
Year: 2011

Copyright: ESO

We report the detection of a hot Jupiter-type exoplanet, named CoRoT-17b, detected by the CoRoT satellite. It has a mass of 2.43 ± 0.30M_Jup and a radius of 1.02 ± 0.07R_Jup, while its mean density is 2.82 ± 0.38 g/cm³. The orbital period is 3.768125 ± 0.000257 days and the orbit is circular. It orbits an old (10.7 ± 1.0 Gyrs) main-sequence star making it an intriguing object for planetary evolution studies. Its internal structure is not well constrained yet and it can be a pure H/He giant as well as it can contain ~320 earth masses of heavier elements.