Volume 520, September-October 2010
|Number of page(s)||4|
|Section||Planets and planetary systems|
|Published online||04 October 2010|
WASP-26b: a 1-Jupiter-mass planet around an early-G-type star *
Astrophysics Group, Keele University,
Staffordshire, ST5 5BG, UK e-mail: firstname.lastname@example.org
2 School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS, UK
3 Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 Août, Bât. B5C, Liège 1, Belgium
4 Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland
5 Las Cumbres Observatory, 6740 Cortona Dr. Suite 102, Santa Barbara, CA 93117, USA
6 Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK
7 Astrophysics Research Centre, School of Mathematics & Physics, Queen's University, University Road, Belfast, BT7 1NN, UK
8 Department of Physics, University of Warwick, Coventry CV4 7AL, UK
Accepted: 24 June 2010
We report the discovery of WASP-26b, a moderately over-sized Jupiter-mass exoplanet transiting its 11.3-mag early-G-type host star (1SWASP J001824.70-151602.3; TYC 5839-876-1) every 2.7566 days. A simultaneous fit to transit photometry and radial-velocity measurements yields a planetary mass of 1.02 ± 0.03 MJup and radius of 1.32 ± 0.08 RJup. The host star, WASP-26, has a mass of 1.12 ± 0.03 and a radius of 1.34 ± 0.06 and is in a visual double with a fainter K-type star. The two stars are at least a common-proper motion pair with a common distance of around 250 ± 15 pc and an age of 6 ± 2 Gy.
Key words: planets and satellites: general / stars: individual: WASP-26 / binaries: visual / techniques: photometric / techniques: spectroscopic / techniques: radial velocities
RV and photometric data are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (126.96.36.199) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/520/A56
© ESO, 2010
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