WASP-92b, WASP-93b and WASP-118b: three new transiting close-in giant planets

K. L. Hay, Andrew Collier Cameron, A. P. Doyle, G. Hébrard, I. Skillen, D. R. Anderson, S. C. C. Barros, D. J. A. Brown, F. Bouchy, R. Busuttil, P. Delorme, L. Delrez, O. Demangeon, R. F. Díaz, M. Gillon, E. Gonzàlez, C. Hellier, S. Holmes, J. F. Jarvis, E. JehinY. C. Joshi, U. Kolb, M. Lendl, P. F. L. Maxted, J. McCormac, G. R. M. Miller, A. Mortier, D. Pollacco, D. Queloz, D. Ségransan, E. K. Simpson, B. Smalley, J. Southworth, A. H. M. J. Triaud, O. D. Turner, S. Udry, M. Vanhuysse, R. G. West, P. A. Wilson

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Abstract

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.
Original languageEnglish
Pages (from-to)3276-3289
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Volume463
Issue number3
Early online date24 Aug 2016
DOIs
Publication statusPublished - 11 Dec 2016

Keywords

  • Techniques: photometric
  • Techniques: radial velocities
  • Planets and satellites: detection
  • Planet-star interactions
  • Planetary systems

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