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.

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., Hellier, C., Jehin, E., Lendl, M., Maxted, P. F. L., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Smith, A., Triaud, A., Udry, S., & 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
• Electronic ISSN: 1538-3873
• 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
• Public URL: https://keele-repository.worktribe.com/output/410486
• Publisher URL: http://iopscience.iop.org/article/10.1088/1538-3873/128/964/064401/meta