Maxted, PFL and Anderson, DR and Cameron, AC and Delrez, L and Gillon, M and Hellier, C and Jehin, E and Lendl, M and Neveu-VanMalle, M and Pepe, F and Pollacco, D and Queloz, D and Ségransan, D and Smalley, B and Smith, AMS and Southworth, J and Triaud, AHMJ and Udry, S and Wagg, T and West, RG (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 and Astrophysics. ISSN 0365-0138 (Unpublished)

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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 0.3M$_{\rm Jup}$ 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.

Item Type: Article
Uncontrolled Keywords: planetary systems
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Natural Sciences > School of Physical and Geographical Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 08 Mar 2016 14:45
Last Modified: 08 Mar 2016 14:45
URI: http://eprints.keele.ac.uk/id/eprint/1542

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