. (2010) WASP-24b: a new transiting close-in hot Jupiter orbiting a late F-star. Astrophysical Journal, Vol.720 (No.1). pp. 337-343. ISSN 0004-637X

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Abstract

We report the discovery of a new transiting close-in giant planet, WASP-24 b, in a 2.341 day orbit, 0.037 AU from its F8-9 type host star. By matching the star's spectrum with theoretical models, we infer an effective temperature T-eff = 6075 +/- 100 K and a surface gravity of log g = 4.15 +/- 0.10. A comparison of these parameters with theoretical isochrones and evolutionary mass tracks places only weak constraints on the age of the host star, which we estimate to be 3.8(-1.2)(+1.3) Gyr. The planetary nature of the companion was confirmed by radial velocity measurements and additional photometric observations. These data were fit simultaneously in order to determine the most probable parameter set for the system, from which we infer a planetary mass of 1.071(-0.038)(+0.036) M-Jup and radius 1.3(-0.037)(+0.039) R-Jup.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Astrophysical Journal
Publisher:	IOP Publishing
ISSN:	0004-637X
Official Date:	1 September 2010
Volume:	Vol.720
Number:	No.1
Number of Pages:	7
Page Range:	pp. 337-343
Identification Number:	10.1088/0004-637X/720/1/337
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/5252

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