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WASP-120 b, WASP-122 b, and WASP-123 b: Three Newly Discovered Planets from the WASP-South Survey

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

Authors

O.D. Turner

D.R. Anderson

A. Collier Cameron

L. Delrez

D.F. Evans

M. Gillon

E. Jehin

M. Lendl

F. Pepe

D. Pollacco

D. Queloz

D. Ségransan

A.M.S. Smith

A.H.M.J. Triaud

S. Udry

R.G. West



Abstract

We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ˜ 11). WASP-120 b is a massive (4.85 M Jup ) planet in a 3.6-day orbit that we find likely to be eccentric around an F5 star. WASP-122 b is a hot Jupiter (1.28 M Jup , 1.74 R Jup ) in a 1.7-day orbit about a G4 star. Our predicted transit depth variation caused by the atmosphere of WASP-122 b suggests it is well suited to characterization. WASP-123 b is a hot Jupiter (0.90 M Jup , 1.32 R Jup ) in a 3.0-day orbit around an old (~7 Gyr) G5 star.

Citation

Turner, O., Anderson, D., Collier Cameron, A., Delrez, L., Evans, D., Gillon, M., …West, R. (2016). WASP-120 b, WASP-122 b, and WASP-123 b: Three Newly Discovered Planets from the WASP-South Survey. Publications of the Astronomical Society of the Pacific, 128, Article 064401. https://doi.org/10.1088/1538-3873/128/964/064401

Journal Article Type Article
Acceptance Date Jan 4, 2016
Online Publication Date May 17, 2016
Publication Date May 17, 2016
Journal Publications of the Astronomical Society of the Pacific
Print ISSN 0004-6280
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 128
Article Number 064401
DOI https://doi.org/10.1088/1538-3873/128/964/064401
Keywords astrophysics, stars, astronomy
Publisher URL http://iopscience.iop.org/article/10.1088/1538-3873/128/964/064401/meta