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WASP-186 and WASP-187: two hot Jupiters discovered by SuperWASP and SOPHIE with additional observations by TESS

Smalley; Hellier; Maxted

WASP-186 and WASP-187: two hot Jupiters discovered by SuperWASP and SOPHIE with additional observations by TESS Thumbnail


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Abstract

We present the discovery of two new hot Jupiters identified from the WASP survey, WASP-186b and WASP-187b (TOI-1494.01 and TOI-1493.01). Their planetary nature was established from SOPHIE spectroscopic observations, and additional photometry was obtained from TESS. Stellar parameters for the host stars are derived from spectral line, IRFM, and isochrone placement analyses. These parameters are combined with the photometric and radial velocity data in an MCMC method to determine the planetary properties. WASP-186b is a massive Jupiter (4.22±0.18 MJ, 1.11 ±0.03 RJ) orbiting a mid-F star on a 5.03 day eccentric (e=0.327±0.008) orbit. WASP-187b is a low density (0.80 ±0.09 MJ, 1.64 ±0.05RJ) planet in a 5.15 day circular orbit around a slightly evolved early F-type star.

Acceptance Date Sep 9, 2020
Publication Date Sep 22, 2020
Publicly Available Date Mar 29, 2024
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Publisher Oxford University Press
Pages 428-440
DOI https://doi.org/10.1093/mnras/staa2848
Keywords planets and satellites, detection, individual, WASP-186b, WASP-187b
Publisher URL https://doi.org/10.1093/mnras/staa2848

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