Article (Scientific journals)
Wasp-7: A Bright Transiting-Exoplanet System in the Southern Hemisphere
Hellier, Coel; Anderson, D. R.; Gillon, Michaël et al.
2009In Astrophysical Journal, 690, p. 89-L91
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Keywords :
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
More authors (22 more) Less
Language :
English
Title :
Wasp-7: A Bright Transiting-Exoplanet System in the Southern Hemisphere
Publication date :
01 January 2009
Journal title :
Astrophysical Journal
ISSN :
0004-637X
eISSN :
1538-4357
Publisher :
University of Chicago Press, Chicago, United States - Illinois
Volume :
690
Pages :
L89-L91
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
http://de.arxiv.org/abs/0805.2600
Available on ORBi :
since 30 October 2009

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