Reference : WASP-25b: a 0.6 M-J planet in the Southern hemisphere
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/76648
WASP-25b: a 0.6 M-J planet in the Southern hemisphere
English
Enoch, B. [School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS]
Cameron, A Collier [School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS]
Anderson, D. R. [Astrophysics Group, Keele University, Staffordshire ST5 5BG]
Lister, T. A. [Las Cumbres Observatory, 6740 Cortona Drive Suite 102, Goleta, CA 93117, USA]
Hellier, C. [Astrophysics Group, Keele University, Staffordshire ST5 5BG]
Maxted, P. F. L. [Astrophysics Group, Keele University, Staffordshire ST5 5BG]
Queloz, D. [Observatoire astronomique de l'Universitén de Genéve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Smalley, B. [Astrophysics Group, Keele University, Staffordshire ST5 5BG]
Triaud, A H M J [Observatoire astronomique de l'Universitén de Genéve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
West, R. G. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH]
Brown, D. J. A. [School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS]
Gillon, Michaël mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Hebb, L. [Vanderbilt University, Department of Physics and Astronomy, Nashville, TN 37235, USA]
Lendl, M. [Observatoire astronomique de l'Universitén de Genéve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Parley, N. [School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS]
Pepe, F. [Observatoire astronomique de l'Universitén de Genéve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Pollacco, D. [Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast BT7 1NN]
Segransan, D. [Observatoire astronomique de l'Universitén de Genéve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
Simpson, E. [Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast BT7 1NN]
Street, R. A. [Las Cumbres Observatory, 6740 Cortona Drive Suite 102, Goleta, CA 93117, USA]
Udry, S. [Observatoire astronomique de l'Universitén de Genéve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland]
2011
Monthly Notices of the Royal Astronomical Society
410
3
1631–1636
Yes
International
[en] planetary systems
[en] We report the detection of a 0.6 M-J extrasolar planet by WASP-South, WASP-25b, transiting its solar-type host star every 3.76d. A simultaneous analysis of the WASP, FTS and Euler photometry and CORALIE spectroscopy yields a planet of R[SUB]p[/SUB] = 1.22 R[SUB]J[/SUB] and M[SUB]p[/SUB] = 0.58 M[SUB]J[/SUB] around a slightly metal-poor solar-type host star, [Fe/H] = - 0.05 +/- 0.10, of R[SUB]*[/SUB] = 0.92 R[SUB]solar[/SUB] and M[SUB]*[/SUB] = 1.00 M[SUB]solar[/SUB]. WASP-25b is found to have a density of ρ[SUB]p[/SUB] = 0.32 ρ[SUB]J[/SUB], a low value for a sub-Jupiter mass planet. We investigate the relationship of planetary radius to planetary equilibrium temperature and host star metallicity for transiting exoplanets with a similar mass to WASP-25b, finding that these two parameters explain the radii of most low-mass planets well.
http://hdl.handle.net/2268/76648
10.1111/j.1365-2966.2010.17550.x
http://adsabs.harvard.edu/abs/2010MNRAS.tmp.1531E
http://de.arxiv.org/abs/1009.5917

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