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

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Maxted, P. F. L., Anderson, D. R., Collier Cameron, A., Delrez, L., Gillon, M., Hellier, C., Jehin, E., Lendl, M., Neveu-VanMalle, M., Pepe, F. et al.
(2016) Five transiting hot Jupiters discovered using WASP-South, Euler, and TRAPPIST : WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b, and WASP-133 b. Astronomy & Astrophysics, 591 . A55. doi:10.1051/0004-6361/201628250

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Official URL: http://dx.doi.org/10.1051/0004-6361/201628250

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Abstract

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.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Extrasolar planets
Journal or Publication Title: Astronomy & Astrophysics
Publisher: EDP Sciences
ISSN: 0004-6361
Official Date: July 2016
Dates:
DateEvent
July 2016Published
10 June 2016Available
24 April 2016Accepted
4 February 2016Submitted
Volume: 591
Article Number: A55
DOI: 10.1051/0004-6361/201628250
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Science and Technology Facilities Council (Great Britain) (STFC), Fonds national de la recherche scientifique (Belgium) (FNRS), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF)
Grant number: 2.5.594.09.F (FNRS)

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