Статья

Five transiting hot Jupiters discovered using WASP-South,<i>Euler</i>, and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b, and WASP-133 b

P. F. L. MaxtedAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKD. R. AndersonAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKA. Collier CameronSUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UKL. DelrezInstitut d’Astrophysique et de Géophysique, Université de Liège, Allée du 6 Août, 17, Bât. B5C, Liège 1, BelgiumM. GillonInstitut d’Astrophysique et de Géophysique, Université de Liège, Allée du 6 Août, 17, Bât. B5C, Liège 1, BelgiumC. HellierAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKE. JehinInstitut d’Astrophysique et de Géophysique, Université de Liège, Allée du 6 Août, 17, Bât. B5C, Liège 1, BelgiumM. LendlObservatoire Astronomique de l’Université de Genève, 51 ch. des Maillettes, 1290 Sauverny, SwitzerlandM. Neveu-VanMalleCavendish Laboratory, J J Thomson Avenue, Cambridge, CB3 0HE, UKF. PepeObservatoire Astronomique de l’Université de Genève, 51 ch. des Maillettes, 1290 Sauverny, SwitzerlandD. PollaccoDepartment of Physics, University of Warwick, Coventry CV4 7AL, UKD. QuelozCavendish Laboratory, J J Thomson Avenue, Cambridge, CB3 0HE, UKD. SégransanObservatoire Astronomique de l’Université de Genève, 51 ch. des Maillettes, 1290 Sauverny, SwitzerlandB. SmalleyAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKA. M. S. SmithAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKJ. SouthworthAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKA. H. M. J. TriaudCentre for Planetary Sciences, University of Toronto at Scarborough, 1265 Military Trail, Toronto, ON, M1C 1A4, CanadaS. UdryObservatoire Astronomique de l’Université de Genève, 51 ch. des Maillettes, 1290 Sauverny, SwitzerlandTom WaggAstrophysics Group, Keele University, Staffordshire, ST5 5BG, UKRichard G. WestDepartment of Physics, University of Warwick, Coventry CV4 7AL, UK

2016en

ABI

Аннотация

We have used photometry from the WASP-South instrument to identify 5 stars showing planet-like transits in their light curves. The planetary nature of the companions to these stars has been confirmed using photometry from the EulerCam instrument on the Swiss Euler 1.2-m telescope and the TRAPPIST telescope, and spectroscopy obtained with the CORALIE spectrograph. The planets discovered are hot Jupiter systems with orbital periods in the range 2.17 to 5.75 days, masses from 0.3 MJup to 1.2 MJup and with radii from 1 RJup to 1.5 RJup. These planets orbit bright stars (V = 11–13) with spectral types in the range F9 to G4. WASP-126 is the brightest planetary system in this sample and hosts a low-mass planet with a large radius (0.3 MJup,0.95 RJup), making it a good target for transmission spectroscopy. The high density of WASP-129 A suggests that it is a helium-rich star similar to HAT-P-11 A. WASP-133 A has an enhanced surface lithium abundance compared to other old G-type stars, particularly other planet host stars. These planetary systems are good targets for follow-up observations with ground-based and space-based facilities to study their atmospheric and dynamical properties.

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Идентификаторы

DOI: 10.1051/0004-6361/201628250

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