R.G. West
Three irradiated and bloated hot Jupiters: WASP-76b, WASP-82b, and WASP-90b
West, R.G.; Almenara, J.-M.; Anderson, D.R.; Bouchy, F.; Brown, D.J.A.; Collier Cameron, A.; Deleuil, M.; Delrez, L.; Doyle, A.P.; Faedi, F.; Fumel, A.; Gillon, M.; Hebrard, G.; Hellier, C.; Jehin, E.; Lendl, M.; Maxted, P.F.L.; Pepe, F.; Pollacco, D.; Queloz, D.; Segransan, D.; Smalley, B.; Smith, A.M.S.; Southworth, J.; Triaud, A.H.M.J.; Udry, S.
Authors
J.-M. Almenara
D.R. Anderson
F. Bouchy
D.J.A. Brown
A. Collier Cameron
M. Deleuil
L. Delrez
A.P. Doyle
F. Faedi
A. Fumel
M. Gillon
G. Hebrard
Coel Hellier c.hellier@keele.ac.uk
E. Jehin
M. Lendl
Pierre Maxted p.maxted@keele.ac.uk
F. Pepe
D. Pollacco
D. Queloz
D. Segransan
Barry Smalley b.smalley@keele.ac.uk
A.M.S. Smith
Dr John Taylor j.k.taylor@keele.ac.uk
A.H.M.J. Triaud
S. Udry
Abstract
We report on three new transiting hot Jupiter planets, discovered from the WASP surveys, which we combine with radial velocities from OHP/SOPHIE and Euler/CORALIE and photometry from Euler and TRAPPIST. The planets WASP-76b, WASP-82b, and WASP-90b are all inflated, with radii of 1.7–1.8 RJup. All three orbit hot stars, of type F5–F7, with orbits of 1.8–3.9 d, and all three stars have evolved, post-main-sequence radii (1.7–2.2 R?). Thus the three planets fit a known trend of hot Jupiters that receive high levels of irradiation being highly inflated. We caution, though, about the presence of a selection effect, in that non-inflated planets around ~2 R? post-MS stars can often produce transits too shallow to be detected by the ground-based surveys that have found the majority of transiting hot Jupiters.
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 8, 2015 |
Publication Date | Jan 1, 2016 |
Journal | Astronomy & Astrophysics |
Print ISSN | 0004-6361 |
Publisher | EDP Sciences |
Peer Reviewed | Peer Reviewed |
Volume | 585 |
Article Number | A126 |
DOI | https://doi.org/10.1051/0004-6361/201527276 |
Keywords | planetary systems, stars, WASP-76, WASP-82, WASP-90, astrophysics |
Publisher URL | http://dx.doi.org/10.1051/0004-6361/201527276 |
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