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WASP-34b: A near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system

Smalley, B; Anderson, David R.; Collier Cameron, Andrew; Hellier, Coel; Lendl, Monika A.; Maxted, P F L; Queloz, D; Triaud, AHMJ; Southworth, J; West, R G; Bento (Da Silva Bento), Joao

Description

We report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting its 10.4-magnitude solar-type host star (1SWASP J110135.89-235138.4; TYC 6636-540-1) every 4.3177 days in a slightly eccentric orbit (e = 0.038±0.012). We find a planetary mass of 0.59±0.01 M Jup and radius of 1.22-0.08 +0.11 R Jup. There is a linear trend in the radial velocities of 55±4 m s-1 y-1 indicating the presence of a long-period third body in the system with a mass ≥0.45 MJup at a distance of ≥1.2 AU from the...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/152057
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201015992
Access Rights: Open Access

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