WASP-157b, a Transiting Hot Jupiter Observed with K2

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

Abstract

We announce the discovery of the transiting hot Jupiter WASP-157b in a 3.95-d orbit around a V = 12.9 G2 main-sequence star. This moderately inflated planet has a Saturn-like density, with a mass of 0.57 ± 0.10 MJup and a radius of 1.06 ± 0.05 RJup. We do not detect any rotational or phase curve modulations, nor the secondary eclipse, with conservative semi-amplitude upper limits of 250 and 20 ppm, respectively.

Citation

Močnik, T., Anderson, D., Brown, D., Collier Cameron, A., Delrez, L., Gillon, M., …West, R. (2016). WASP-157b, a Transiting Hot Jupiter Observed with K2. Publications of the Astronomical Society of the Pacific, 128(970), Article 124403. https://doi.org/10.1088/1538-3873/128/970/124403

• Journal Article Type: Article
• Acceptance Date: Jun 15, 2016
• Publication Date: Oct 26, 2016
• Journal: Publications of the Astronomical Society of the Pacific
• Print ISSN: 0004-6280
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 128
• Issue: 970
• Article Number: 124403
• DOI: https://doi.org/10.1088/1538-3873/128/970/124403
• Keywords: astrophysics, astronomy, physics
• Publisher URL: https://doi.org/10.1088/1538-3873/128/970/124403