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arXiv · 1603.05638

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

T. Močnik·D. R. Anderson·D. J. A. Brown·A. Collier Cameron·L. Delrez·M. Gillon·C. Hellier·E. Jehin·M. Lendl·P. F. L. Maxted·M. Neveu-VanMalle·F. Pepe·D. Pollacco·D. Queloz·D. Ségransan·B. Smalley·J. Southworth·A. H. M. J. Triaud·S. Udry·R. G. West
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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 $0.57 \pm 0.10$ M$_{\rm Jup}$ and a radius of $1.06 \pm 0.05$ R$_{\rm Jup}$. 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.

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T. Močnik, D. R. Anderson, D. J. A. Brown, A. Collier Cameron, L. Delrez, M. Gillon, C. Hellier, E. Jehin, M. Lendl, P. F. L. Maxted, M. Neveu-VanMalle, F. Pepe, D. Pollacco, D. Queloz, D. Ségransan, B. Smalley, J. Southworth, A. H. M. J. Triaud, S. Udry, R. G. West. 2016-06-16. WASP-157b, a Transiting Hot Jupiter Observed with K2. https://doi.org/10.1088/1538-3873%2F128%2F970%2F124403

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