Three Hot-Jupiters on the upper edge of the mass-radius distribution : WASP-177, WASP-181 and WASP-183
Abstract
We present the discovery of 3 transiting planets from the WASP survey, two hot-Jupiters: WASP-177 b (∼0.5 MJup, ∼1.6 RJup) in a 3.07-d orbit of a V = 12.6 K2 star, WASP-183 b (∼0.5 MJup, ∼1.5 RJup) in a 4.11-d orbit of a V = 12.8 G9/K0 star; and one hot-Saturn planet WASP-181 b (∼0.3 MJup, ∼1.2 RJup) in a 4.52-d orbit of a V = 12.9 G2 star. Each planet is close to the upper bound of mass-radius space and has a scaled semi-major axis, a/R*, between 9.6 and 12.1. These lie in the transition between systems that tend to be in orbits that are well aligned with their host-star’s spin and those that show a higher dispersion.
Citation
Turner , O D , Anderson , D R , Barkaoui , K , Bouchy , F , Benkhaldoun , Z , Brown , D J A , Burdanov , A , Cameron , A C , Ducrot , E , Gillon , M , Hellier , C , Jehin , E , Lendl , M , Maxted , P F L , Nielsen , L D , Pepe , F , Pollacco , D , Pozuelos , F J , Queloz , D , Ségransan , D , Smalley , B , Triaud , A H M J , Udry , S & West , R G 2019 , ' Three Hot-Jupiters on the upper edge of the mass-radius distribution : WASP-177, WASP-181 and WASP-183 ' , Monthly Notices of the Royal Astronomical Society , vol. 485 , no. 4 , pp. 5790–5799 . https://doi.org/10.1093/mnras/stz742
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
ISSN
0035-8711Type
Journal article
Description
The research leading to these results has received funding from the European Research Council under the FP/2007-2013 ERC Grant Agreement 336480, from the ARC grant for Concerted Research Actions financed by the Wallonia-Brussels Federation, from the Balzan Foundation, and a grant from the Erasmus+ International Credit Mobility programme (K Barkaoui).Collections
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