Three Hot-Jupiters on the upper edge of the mass-radius distribution : WASP-177, WASP-181 and WASP-183
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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.
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
Monthly Notices of the Royal Astronomical Society
© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with the publisher's policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1093/mnras/stz742
DescriptionThe 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).
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