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, Teff = 6400 ± 100 K, M * = 1.35 ± 0.05 M ⊙, and R * = 1.6 ± 0.1 R ⊙. The planet has a radius of R P = 1.15 ± 0.09 R Jup and a mass of M P = 1.0 ± 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 of >5 days. The orbit is also marginally misaligned with respect to the stellar rotation, with λ = 21° ± 6° measured using Doppler tomography.

Citation

Temple , L Y , Hellier , C , Almleaky , Y , Anderson , D R , Bouchy , F , Brown , D J A , Burdanov , A , Cameron , A C , 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 , Triaud , A H M J , Turner , O D , Udry , S & West , R G 2019 , ' WASP-190b : tomographic discovery of a transiting hot Jupiter ' , Astronomical Journal , vol. 157 , no. 4 , 141 . https://doi.org/10.3847/1538-3881/ab095a

Publication

Astronomical Journal

Status

Peer reviewed

DOI

https://doi.org/10.3847/1538-3881/ab095a

ISSN

0004-6256

Type

Journal article

Rights

© 2019, The American Astronomical Society. This work has been made available online in accordance with the publisher's policies. This is the final published version of the work, which was originally published at https://doi.org/10.3847/1538-3881/ab095a

Description

The research leading to these results has received funding from the European Research Council (ERC) under the FP/2007-2013 ERC grant agreement No. 336480, and under the H2020 ERC grant agreement No. 679030, and from an Actions de Recherche Concertée (ARC) grant, financed by the Wallonia-Brussels Federation.

Collections

University of St Andrews Research

URI

http://hdl.handle.net/10023/17407

St Andrews Research Repository