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WASP-26b: a 1-Jupiter-mass planet around an early-G-type star

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journal contribution
posted on 24.10.2012, 09:06 by B. Smalley, D. R. Anderson, A. C. Cameron, M. Gillon, C. Hellier, T. A. Lister, P. F. L. Maxted, D. Queloz, A. H. M. J. Triaud, R. G. West, S. J. Bentley, B. Enoch, F. Pepe, D. L. Pollacco, D. Segransan, A. M. S. Smith, J. Southworth, S. Udry, P. J. Wheatley, P. L. Wood, J. Bento
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. 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.

History

Citation

Astronomy & Astrophysics, 2010, 520

Version

VoR (Version of Record)

Published in

Astronomy & Astrophysics

Publisher

EDP Sciences for European Southern Observatory (ESO)

issn

0004-6361

Copyright date

2010

Available date

24/10/2012

Publisher version

http://www.aanda.org/articles/aa/abs/2010/12/aa14705-10/aa14705-10.html

Language

English