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K2-140b - An eccentric 6.57 d transiting hot Jupiter in Virgo

Giles, Helen A C; Bayliss, Daniel; Espinoza, N; Brahm, R; Blanco-Cuaresma, S.; Shporer, Avi; Armstrong, David J.; Lovis, C; Udry, S; Bouchy, François; Marmier, M; Jordán, A; Bento, Joao


We present the discovery of K2-140b, a P = 6.57 d Jupiter-mass (MP = 1.019 ± 0.070MJup) planet transiting a V = 12.5 (G5-spectral type) star in an eccentric orbit (e = 0.120-0.046 +0.056) detected using a combination of K2 photometry and ground-based observations. With a radius of 1.095 ± 0.018 RJup, the planet has a bulk density of 0.726 ± 0.062 ρJup. The host star has a [Fe/H] of 0.12 ± 0.045, and from the K2 light curve, we find a rotation period for the star of 16.3 ± 0.1 d. This discovery...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/MNRAS/STX3300
Access Rights: Open Access


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