Triaud, A H M J[Observatoire Astronomique de l'Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Queloz, D.[Observatoire Astronomique de l'Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Segransan, D.[Observatoire Astronomique de l'Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Pepe, F.[Observatoire Astronomique de l'Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Udry, S.[Observatoire Astronomique de l'Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Lister, T. A.[Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA]
Depagne, É[Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA]
West, R. G.[Department of Physics & Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK]
Norton, A. J.[Department of Physics & Astronomy, The Open University, N2041, Venables Building, Milton Keynes, MK7 6AA, UK]
Smalley, B.[Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK]
Hellier, C.[Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK]
Anderson, D. R.[Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK]
Maxted, P. F. L.[Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK]
Bentley, S. J.[Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK]
Skillen, I.[Isaac Newton Group of Telescopes, Apartado de correos 321, E-38700 Santa Cruz de la Palma, Canary Islands, Spain]
Gillon, Michaël[Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Wheatley, P.[Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK]
Bento, J.[Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK]
Cathaway-Kjontvedt, P.[Department of Physics and Astronomy, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330, USA]
Christian, D. J.[Astrophysics Research Centre, Physics Building, Queen's University, Belfast, County Antrim, BT7 1NN, UK ; Department of Physics and Astronomy, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330, USA]
[en] We report the discovery of a new transiting close-in giant planet, WASP-24 b, in a 2.341 day orbit, 0.037 AU from its F8-9 type host star. By matching the star's spectrum with theoretical models, we infer an effective temperature T [SUB]eff[/SUB] = 6075 ± 100 K and a surface gravity of log g = 4.15 ± 0.10. A comparison of these parameters with theoretical isochrones and evolutionary mass tracks places only weak constraints on the age of the host star, which we estimate to be 3.8[SUP]+1.3[/SUP] [SUB]-1.2[/SUB] Gyr. The planetary nature of the companion was confirmed by radial velocity measurements and additional photometric observations. These data were fit simultaneously in order to determine the most probable parameter set for the system, from which we infer a planetary mass of 1.071[SUP]+0.036[/SUP] [SUB]-0.038[/SUB] M [SUB]Jup[/SUB] and radius 1.3[SUP]+0.039[/SUP] [SUB]-0.037[/SUB] R [SUB]Jup[/SUB].
[Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
