stars: individual: WASP-7 HD 197286; planetary systems
Abstract :
[en] We report that a Jupiter-mass planet, WASP-7b, transits the V = 9.5 star HD 197286 every 4.95 d. This is the brightest discovery from the WASP-South transit survey so far and is currently the brightest transiting-exoplanet system in the southern hemisphere. WASP-7b is among the densest of the known Jupiter-mass planets, suggesting that it has a massive core. The planet mass is 0.96[SUP]+0.12[/SUP] [SUB]--0.18[/SUB] M [SUB]Jup[/SUB], the radius is 0.915[SUP]+0.046[/SUP] [SUB]--0.040[/SUB] R [SUB]Jup[/SUB], and the density is 1.26[SUP]+0.25[/SUP] [SUB]--0.21[/SUB] rho[SUB]Jup[/SUB] (1.67[SUP]+0.33[/SUP] [SUB]--0.28[/SUB] g cm[SUP]--3[/SUP]).
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Hellier, Coel; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Anderson, D. R.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Lister, T. A.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK ; Las Cumbres Observatory, 6740 Cortona Dr. Suite 102, Santa Barbara, CA 93117, USA
Maxted, P. F. L.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Queloz, D.; Observatoire de Genève, 51 ch. des Maillettes, 1290 Sauverny, Switzerland
Smalley, B.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Triaud, A H M J; Observatoire de Genève, 51 ch. des Maillettes, 1290 Sauverny, Switzerland
West, R. G.; Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK
Wilson, D. M.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Alsubai, K.; School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
Bentley, S. J.; Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK
Cameron, A Collier; School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
Hebb, L.; School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
Horne, K.; School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
Irwin, J.; Department of Astronomy, Harvard University, 60 Garden Street, MS 10, Cambridge, Massachusetts 02138, USA
Kane, S. R.; Michelson Science Center, Caltech, MS 100-22, 770 South Wilson Avenue, Pasadena, CA 91125, USA
Mayor, M.; Observatoire de Genève, 51 ch. des Maillettes, 1290 Sauverny, Switzerland
Pepe, F.; Observatoire de Genève, 51 ch. des Maillettes, 1290 Sauverny, Switzerland
Pollacco, D.; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast, BT7 1NN, UK
Skillen, I.; Isaac Newton Group of Telescopes, Apartado de Correos 321, E-38700 Santa Cruz de la Palma, Tenerife, Spain
Udry, S.; Observatoire de Genève, 51 ch. des Maillettes, 1290 Sauverny, Switzerland
Wheatley, P. J.; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
Christian, D. J.; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast, BT7 1NN, UK
Enoch, R.; Department of Physics and Astronomy, The Open University, Milton Keynes, MK7 6AA, UK ; School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
Haswell, C. A.; Department of Physics and Astronomy, The Open University, Milton Keynes, MK7 6AA, UK
Joshi, Y. C.; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast, BT7 1NN, UK
Norton, A. J.; Department of Physics and Astronomy, The Open University, Milton Keynes, MK7 6AA, UK
Parley, N.; Department of Physics and Astronomy, The Open University, Milton Keynes, MK7 6AA, UK
Ryans, R.; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast, BT7 1NN, UK
Street, R. A.; Las Cumbres Observatory, 6740 Cortona Dr. Suite 102, Santa Barbara, CA 93117, USA ; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast, BT7 1NN, UK
Todd, I.; Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast, BT7 1NN, UK
