Discovery of WASP-65b and WASP-75b:two hot Jupiters without highly inflated radii
- Gómez Maqueo Chew, Y.
- Faedi, F.
- Pollacco, D.
- Brown, David John Alexander
- 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.
DOIAbstract
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 cu...
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