[en] 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 R[SUB]p[/SUB] = 1.461 ± 0.077R[SUB]J[/SUB] and M[SUB]p[/SUB] = 0.805 ± 0.068M[SUB]J[/SUB]. WASP-93b orbits its F4 host star every 2.73 days and has R[SUB]p[/SUB] = 1.597 ± 0.077R[SUB]J[/SUB] and M[SUB]p[/SUB] = 1.47 ± 0.029M[SUB]J[/SUB]. WASP-118b also has a hot host star (F6) and is moderately inflated, where R[SUB]p[/SUB] = 1.440 ± 0.036R[SUB]J[/SUB] and M[SUB]p[/SUB] = 0.514 ± 0.020M[SUB]J[/SUB] 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. The WASP-93 system has sufficient angular momentum to be tidally migrating outwards if the system is near spin-orbit alignment, which is divergent from the tidal behaviour of the majority of hot Jupiters discovered.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Hay, K. L.; SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, UK
Collier-Cameron, A.; SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, UK
Doyle, A. P.; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
Hébrard, G.; Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre, and Marie Curie, 75000 Paris, France
Skillen, I.; Isaac Newton Group of Telescopes, Apartado de Correos 321, Santa Cruz de La Palma, E-38700, Spain
Anderson, D. R.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Barros, S. C. C.; Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal
Brown, D. J. A.; SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, UK ; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
Bouchy, F.; Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388 Marseille, France
Busuttil, R.; Department of Physical Sciences, The Open University, Milton Keynes, MK7 6AA, UK
Delorme, P.; SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, UK ; Université Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
Delrez, Laetitia ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Demangeon, O.; Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388 Marseille, France
Díaz, R. F.; Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland
Gillon, Michaël ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Gómez Maqueo Chew, Y.; Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, 04510, México
Gonzàlez, E.; Observatori Astronómic de Mallorca, Camí de l'Observatori s/n, 07144 Costitx, Mallorca, Spain
Hellier, C.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Holmes, S.; Department of Physical Sciences, The Open University, Milton Keynes, MK7 6AA, UK
Jarvis, J. F.; Department of Physical Sciences, The Open University, Milton Keynes, MK7 6AA, UK
Jehin, Emmanuel ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Joshi, Y. C.; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, Belfast BT7 1NN, UK ; Aryabhatta Research Institute of Observational Sciences (ARIES), Manora peak, Nainital 263002, India
Kolb, U.; Department of Physical Sciences, The Open University, Milton Keynes, MK7 6AA, UK
Lendl, M.; Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland ; Space Research Institute, Austrian Academy of Sciences, Schmeidlerstr. 6, 8042 Graz, Austria
Maxted, P. F. L.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
McCormac, J.; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
Miller, G. R. M.; SUPA, School of Physics and Astronomy, University of St Andrews, Fife, KY16 9SS, UK ; Department of Physics, University of Oxford, Keble Road, Oxford, OX1 3RH, UK
Pallé, E.; Instituto de Astrofísica de Canarias (IAC), Vía Láctea s/n, 38205 La Laguna, Spain ; Departamento de Astrofísica, Universidad de La Laguna, 38205 La Laguna, Tenerife, Spain
Pollacco, D.; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
Prieto-Arranz, J.; Instituto de Astrofísica de Canarias (IAC), Vía Láctea s/n, 38205 La Laguna, Spain ; Departamento de Astrofísica, Universidad de La Laguna, 38205 La Laguna, Tenerife, Spain
Queloz, D.; Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, United Kingdom
Ségransan, D.; Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland
Simpson, E. K.; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, Belfast BT7 1NN, UK
Smalley, B.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Southworth, J.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Triaud, A. H. M. J.; Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland ; Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, United Kingdom
Turner, O. D.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Udry, S.; Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland
Vanhuysse, M.; OverSky, 47 allée des Palanques, BP 12, 33127, Saint-Jean d'Illac, France
West, R. G.; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
Wilson, P. A.; Institut d'Astrophysique de Paris, UMR 7095 CNRS, Université Pierre, and Marie Curie, 75000 Paris, France)
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