Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b

Benjamin F. Cooke, Don Pollacco, Y. Almleaky, K. Barkaoui, Z. Benkhaldoun, James A. Blake, François Bouchy, Panos Boumis, D. J.A. Brown, Ivan Bruni, A. Burdanov, Andrew Collier Cameron, Paul Chote, A. Daassou, Giuseppe D'Ago, Shweta Dalal, Mario Damasso, L. Delrez, A. P. Doyle, E. DucrotM. Gillon, G. Hébrard, C. Hellier, Thomas Henning, E. Jehin, Flavien Kiefer, George W. King, Alexios Liakos, Théo Lopez, Luigi Mancini, Rosemary Mardling, P. F.L. Maxted, James McCormac, C. Murray, Louise D. Nielsen, Hugh Osborn, E. Palle, Francesco Pepe, F. J. Pozuelos, J. Prieto-Arranz, D. Queloz, Nicole Schanche, Damien Ségransan, Barry Smalley, John Southworth, S. Thompson, Oliver Turner, Stéphane Udry, S. Velasco, Richard West, Pete Wheatley, John Alikakos

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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⊙ and 1.7 R⊙ respectively. WASP-150b has a mass and radius of 8.5 M J and 1.1 R J, leading to a large planetary bulk density of 6.4 ρ J. 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 o˙ and 1.9 R o˙. WASP-176b has a mass and radius of 0.86 M J and 1.5 R J, respectively, leading to a planetary bulk density of 0.23 ρ J

Original languageEnglish
Article number255
Number of pages11
JournalThe Astronomical Journal
Volume159
Issue number6
DOIs
Publication statusPublished - Jun 2020

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