WASP-190b: Tomographic discovery of a transiting hot Jupiter

We report the discovery of WASP-190b, an exoplanet on a 5.37-day orbit around a mildly-evolved F6 IV-V star with V = 11.7, T_eff = 6400 \(\pm\) 100 K, M\(_{*}\) = 1.35 \(\pm\) 0.05 M_sun and R\(_{*}\) = 1.6 \(\pm\) 0.1 R_sun. The planet has a radius of R_p = 1.15 \(\pm\) 0.09 R_Jup and a mass of M_p...

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Bibliographic Details
Published in:arXiv.org 2019-02
Main Authors: Temple, L Y, Hellier, C, Almleaky, Y, Anderson, D R, Bouchy, F, Brown, D J A, Burdanov, A, A Collier Cameron, Delrez, L, Gillon, M, Jehin, E, Lendl, M, Maxted, P F L, Murray, C, Nielsen, L D, Pepe, F, Pollacco, D, Queloz, D, Ségransan, D, Smalley, B, Thompson, S, A H M J Triaud, Turner, O D, Udry, S, West, R G
Format: Article
Language:English
Subjects:
Extrasolar planets
Gas giant planets
Orbits
Stellar evolution
Stellar rotation
Tomography
Online Access:Get full text
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Summary:We report the discovery of WASP-190b, an exoplanet on a 5.37-day orbit around a mildly-evolved F6 IV-V star with V = 11.7, T_eff = 6400 \(\pm\) 100 K, M\(_{*}\) = 1.35 \(\pm\) 0.05 M_sun and R\(_{*}\) = 1.6 \(\pm\) 0.1 R_sun. The planet has a radius of R_p = 1.15 \(\pm\) 0.09 R_Jup and a mass of M_p = 1.0 \(\pm\) 0.1 M_Jup, making it a mildly inflated hot Jupiter. It is the first hot Jupiter confirmed via Doppler tomography with an orbital period >5 days. The orbit is also marginally misaligned with respect to the stellar rotation, with \(\lambda\) = 21 \(\pm\) 6\(^{\circ}\) measured using Doppler tomography.
ISSN:2331-8422