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arXiv · 1004.1542

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

B. Smalley·D. R. Anderson·A. Collier 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
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Abstract

We report the discovery of WASP-26b, a moderately over-sized Jupiter-mass exoplanet transiting its 11.3-magnitude 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 M_Jup and radius of 1.32 +/- 0.08 R_Jup. The host star, WASP-26, has a mass of 1.12 +/- 0.03 M_sun and a radius of 1.34 +/- 0.06 R_sun 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.

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B. Smalley, D. R. Anderson, A. Collier 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. 2010-04-09. WASP-26b: A 1-Jupiter-mass planet around an early-G-type star. https://doi.org/10.1051/0004-6361%2F201014705

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