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.

doi:10.1088/1538-3873/128/970/124403

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.

Authors

T. Močnik

D.R. Anderson

D.J.A. Brown

A. Collier Cameron

L. Delrez

M. Gillon

Coel Hellier c.hellier@keele.ac.uk

E. Jehin

M. Lendl

Pierre Maxted p.maxted@keele.ac.uk

M. Neveu-VanMalle

F. Pepe

D. Pollacco

D. QueloZ

D. Ségransan

Barry Smalley b.smalley@keele.ac.uk

Dr John Taylor j.k.taylor@keele.ac.uk

A.H.M.J. Triaud

S. Udry

R.G. West

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.

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