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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

Maxted, P.F.L.; Anderson, D.R.; Collier Cameron, A.; Delrez, L.; Gillon, M.; Hellier, C.; Jehin, E.; Lendl, M.; -VanMalle, M.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A.M.S.; Southworth, J.; Triaud, A.H.M.J.; Udry, S.; Wagg, T.; West, R.G.

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 Thumbnail


Authors

D.R. Anderson

A. Collier Cameron

L. Delrez

M. Gillon

E. Jehin

M. Lendl

M. -VanMalle

F. Pepe

D. Pollacco

D. Queloz

D. Ségransan

A.M.S. Smith

A.H.M.J. Triaud

S. Udry

T. Wagg

R.G. West



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 0.3M$_{\rm Jup}$ to 1.2M$_{\rm Jup}$ and with radii from 1R$_{\rm Jup}$ to 1.5R$_{\rm Jup}$. 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 M$_{\rm Jup}$ , 0.95R$_{\rm Jup}$), 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 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.

Journal Article Type Article
Acceptance Date Apr 24, 2016
Online Publication Date Jun 10, 2016
Publication Date 2016-07
Publicly Available Date Mar 28, 2024
Journal Astronomy and Astrophysics
Print ISSN 2329-1273
Publisher Hans Publishers
Peer Reviewed Peer Reviewed
Volume 591
Article Number A55
DOI https://doi.org/10.1051/0004-6361/201628250
Keywords planetary systems
Publisher URL https://doi.org/10.1051/0004-6361/201628250

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