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

By Barry Smalley, D. R. Anderson, A. Collier Cameron, M. Gillon, Coel Hellier, T. A. Lister, Pierre Maxted, Didier Queloz, A. H. M. J. Triaud, Richard G. West, Samuel J. Bentley, B. Enoch, Francesco Pepe, Don Pollacco, D. Segransan, A. M. S. Smith, J. (John) Southworth, S. Udry, P. J. Wheatley, P. L. Wood and Joao Paulo da Silva 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\ud 1.12 ± 0.03 M and a radius of 1.34 ± 0.06 R 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

Topics: QB
Publisher: EDP Sciences
Year: 2010
OAI identifier:

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