Y. Gómez Maqueo Chew
Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii
Gómez Maqueo Chew, Y.; Faedi, F.; Pollacco, D.; Brown, D. J. A.; Doyle, A. P.; Collier Cameron, A.; Gillon, M.; Lendl, M.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Wheatley, P. J.; Busuttil, R.; Liebig, C.; Anderson, D. R.; Armstrong, D. J.; Barros, S. C. C.; Bento, J.; Bochinski, J.; Burwitz, V.; Delrez, L.; Enoch, B.; Fumel, A.; Haswell, C. A.; Hébrard, G.; Hellier, C.; Holmes, S.; Jehin, E.; Kolb, U.; Maxted, P. F. L.; McCormac, J.; Miller, G. R. M.; Norton, A. J.; Pepe, F.; Queloz, D.; Rodríguez, J.; Ségransan, D.; Skillen, I.; Stassun, K. G.; Udry, S.; Watson, C.
Authors
F. Faedi
D. Pollacco
D. J. A. Brown
A. P. Doyle
A. Collier Cameron
M. Gillon
M. Lendl
Barry Smalley b.smalley@keele.ac.uk
A. H. M. J. Triaud
R. G. West
P. J. Wheatley
R. Busuttil
C. Liebig
D. R. Anderson
D. J. Armstrong
S. C. C. Barros
J. Bento
J. Bochinski
V. Burwitz
L. Delrez
B. Enoch
A. Fumel
C. A. Haswell
G. Hébrard
Coel Hellier c.hellier@keele.ac.uk
S. Holmes
E. Jehin
U. Kolb
Pierre Maxted p.maxted@keele.ac.uk
J. McCormac
G. R. M. Miller
A. J. Norton
F. Pepe
D. Queloz
J. Rodríguez
D. Ségransan
I. Skillen
K. G. Stassun
S. Udry
C. Watson
Abstract
We report the discovery of two transiting hot Jupiters, WASP-65b (Mpl = 1.55 ± 0.16 MJ; Rpl = 1.11 ± 0.06 RJ), and WASP-75b (Mpl = 1.07 ± 0.05 MJ; Rpl = 1.27 ± 0.05 RJ). They orbit their host star every ~2.311, and ~2.484 days, respectively. The planet host WASP-65 is a G6 star (Teff = 5600 K, [Fe/H] = −0.07 ± 0.07, age ≳8 Gyr); WASP-75 is an F9 star (Teff = 6100 K, [Fe/H] = 0.07 ± 0.09, age ~ 3 Gyr). WASP-65b is one of the densest known exoplanets in the mass range 0.1 and 2.0 MJ (ρpl = 1.13 ± 0.08 ρJ), a mass range where a large fraction of planets are found to be inflated with respect to theoretical planet models. WASP-65b is one of only a handful of planets with masses of ~1.5 MJ, a mass regime surprisingly underrepresented among the currently known hot Jupiters. The radius of WASP-75b is slightly inflated (≲10%) as compared to theoretical planet models with no core, and has a density similar to that of Saturn (ρpl = 0.52 ± 0.06 ρJ).
Citation
Gómez Maqueo Chew, Y., Faedi, F., Pollacco, D., Brown, D. J. A., Doyle, A. P., Collier Cameron, A., …Watson, C. (2013). Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii. Astronomy & Astrophysics, 559, Article A36. https://doi.org/10.1051/0004-6361/201322314
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 27, 2013 |
Online Publication Date | Nov 1, 2013 |
Publication Date | 2013-11 |
Deposit Date | Jun 15, 2023 |
Journal | Astronomy & Astrophysics |
Print ISSN | 0004-6361 |
Electronic ISSN | 1432-0746 |
Publisher | EDP Sciences |
Peer Reviewed | Peer Reviewed |
Volume | 559 |
Article Number | A36 |
DOI | https://doi.org/10.1051/0004-6361/201322314 |
Keywords | Space and Planetary Science; Astronomy and Astrophysics |
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