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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, Jakub; 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. and Watson, C.
(2013).
DOI: https://doi.org/10.1051/0004-6361/201322314
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).
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About
- Item ORO ID
- 38973
- Item Type
- Journal Item
- ISSN
- 1432-0746
- Project Funding Details
-
Funded Project Name Project ID Funding Body Not Set Not Set Consortium Universitites Not Set Not Set STFC (Science & Technology Facilities Council) Not Set FRFC 2.5.594.09.F Belgian Fund for Scientific Research (Fond National de la RechercheScientifique, FNRS) Not Set Not Set Swiss National Science Fundation (SNF) Not Set RG226604 (OPTICON) European Community’sSeventh Framework Programme (FP7/2007-2013) Not Set NPRP-09-476-1-078 Qatar Foundation Not Set Not Set Vanderbilt Office of the Provost, through the Vanderbilt Initiative in Data-intensive Astrophysics (VIDA Not Set Not Set Vanderbilt International Office - Keywords
- planetary systems; stars: individual: (WASP-65, WASP-75; techniques: radial velocity, photometry
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Copyright Holders
- © 2013 ESO
- Depositing User
- Andrew Norton