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

Smalley, B.; R. Anderson, D.; Collier Cameron, A.; Gillon, M.; Hellier, C.; A. Lister, T.; F. L. Maxted, P.; Queloz, D.; H. M. J. Triaud, A.; G. West, R.; J. Bentley, S.; Enoch, B.; Pepe, F.; L. Pollacco, D.; Segransan, D.; M. S. Smith, A.; Southworth, J.; Udry, S.; J. Wheatley, P.; L. Wood, P.; Bento, J.

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.

Citation

Smalley, B., R. Anderson, D., Collier Cameron, A., Gillon, M., Hellier, C., A. Lister, T., …Bento, J. (2010). WASP-26b: A 1-Jupiter-mass planet around an early-G-type star. Astronomy & Astrophysics, 520, Article A56. https://doi.org/10.1051/0004-6361/201014705

• Journal Article Type: Article
• Acceptance Date: Jun 24, 2010
• Online Publication Date: Oct 4, 2010
• Publication Date: 2010-09
• Deposit Date: Jul 6, 2023
• Publicly Available Date: Jul 6, 2023
• Journal: Astronomy & Astrophysics
• Print ISSN: 0004-6361
• Electronic ISSN: 1432-0746
• Publisher: EDP Sciences
• Peer Reviewed: Peer Reviewed
• Volume: 520
• Article Number: A56
• DOI: https://doi.org/10.1051/0004-6361/201014705
• Keywords: Earth and Planetary Astrophysics; Solar and Stellar Astrophysics; planets and satellites: general - stars: individual: WASP-26 - binaries: visual - techniques: photometric - techniques: spectroscopic - techniques: radial velocities