Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b
Henning, Thomas; Queloz, D.; Smalley, Barry; Prieto-Arranz, J.; Palle, E.; Delrez, L.; Gillon, M.; Maxted, P. F. L.; McCormac, James; Udry, Stéphane; Jehin, E.; Daassou, A.; Barkaoui, K.; Benkhaldoun, Z.; Hébrard, G.; Bouchy, François; Chote, Paul; Nielsen, Louise D.; Hellier, C.; Pepe, Francesco; Mancini, Luigi; Pollacco, Don; Brown, D. J. A.; Southworth, John; Burdanov, A.; Thompson, S.; Almleaky, Y.; Ducrot, E.; Pozuelos, F. J.; Velasco, S.; Ségransan, Damien; Osborn, Hugh; Kiefer, Flavien; Cameron, Andrew Collier; Mardling, Rosemary; Turner, Oliver; King, George W.; Damasso, Mario; West, Richard; Cooke, Benjamin F.; Blake, James A.; Boumis, Panos; Bruni, Ivan; D'ago, Giuseppe; Dalal, Shweta; Doyle, A. P.; Liakos, Alexios; Lopez, Théo; Murray, C.; Schanche, Nicole; Wheatley, Pete; Alikakos, John
United Kingdom, Saudi Arabia, Belgium, Morocco, Switzerland, Greece, Italy, Chile, France, Germany, Australia, Spain
Abstract
We report the discovery of two transiting exoplanets from the WASP survey, WASP-150b and WASP-176b. WASP-150b is an eccentric (e = 0.38) hot Jupiter on a 5.6 day orbit around a V = 12.03, F8 main-sequence host. The host star has a mass and radius of 1.4 ${M}_{\odot }$ and 1.7 ${R}_{\odot }$ respectively. WASP-150b has a mass and radius of 8.5 ${M}_{{\rm{J}}}$ and 1.1 RJ, leading to a large planetary bulk density of 6.4 ρJ. WASP-150b is found to be ∼3 Gyr old, well below its circularization timescale, supporting the eccentric nature of the planet. WASP-176b is a hot Jupiter planet on a 3.9 day orbit around a V = 12.01, F9 sub-giant host. The host star has a mass and radius of 1.3 M⊙ and 1.9 R⊙. WASP-176b has a mass and radius of 0.86 MJ and 1.5 RJ, respectively, leading to a planetary bulk density of 0.23 ρJ.