WASP-92b, WASP-93b and WASP-118b: three new transiting close-in giant planets
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We present the discovery of three new transiting giant planets, first detected with the WASP telescopes, and establish their planetary nature with follow up spectroscopy and ground-based photometric lightcurves. WASP-92 is an F7 star, with a moderately inflated planet orbiting with a period of 2.17 days, which has Rp = 1.461 ± 0.077RJ and Mp = 0.805 ± 0.068MJ. WASP-93b orbits its F4 host star every 2.73 days and has Rp = 1.597 ± 0.077RJ and Mp = 1.47 ± 0.029MJ. WASP-118b also has a hot host star (F6) and is moderately inflated, where Rp = 1.440 ± 0.036RJ and Mp = 0.513 ± 0.041MJ and the planet has an orbital period of 4.05 days. They are bright targets (V = 13.18, 10.97 and 11.07 respectively) ideal for further characterisation work, particularly WASP-118b, which is being observed by K2 as part of campaign 8. WASP-93b is expected to be tidally migrating outwards, which is divergent from the tidal behaviour of the majority of hot Jupiters discovered.
Hay , K L , Cameron , A C , Doyle , A P , Hébrard , G , Skillen , I , Anderson , D R , Barros , S C C , Brown , D J A , Bouchy , F , Busuttil , R , Delorme , P , Delrez , L , Demangeon , O , Díaz , R F , Gillon , M , Gonzàlez , E , Hellier , C , Holmes , S , Jarvis , J F , Jehin , E , Joshi , Y C , Kolb , U , Lendl , M , Maxted , P F L , McCormac , J , Miller , G R M , Mortier , A , Pollacco , D , Queloz , D , Ségransan , D , Simpson , E K , Smalley , B , Southworth , J , Triaud , A H M J , Turner , O D , Udry , S , Vanhuysse , M , West , R G & Wilson , P A 2016 , ' WASP-92b, WASP-93b and WASP-118b: three new transiting close-in giant planets ' Monthly Notices of the Royal Astronomical Society , vol 463 , no. 3 , pp. 3276-3289 . DOI: 10.1093/mnras/stw2090
Monthly Notices of the Royal Astronomical Society
© 2016, the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1093/mnras/stw2090
KH and ACC acknowledge support from STFC doctoral training grant ST/M503812/1 and grant ST/M001296/1 respectively. The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2013-2016) under grant agreement number 312430 (OPTICON).
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