[en] We report the discovery of the low-density, transiting giant planet WASP-31b. The planet is 0.47 Jupiter masses and 1.56 Jupiter radii. It is in a 3.4-day orbit around a 1-Gyr-old, late-F-type, V = 11.7 star, which is a member of a common proper motion pair. In terms of its low density, WASP-31b is second only to WASP-17b, which is a more highly irradiated planet of similar mass.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Anderson, D. R.
Collier Cameron, A.
Hellier, C.
Lendl, M.
Lister, T. A.
Maxted, P. F. L.
Queloz, D.
Smalley, B.
Smith, A. M. S.
Triaud, A H M J
West, R. G.
Brown, D. J. A.
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image