WASP-5b: a dense, very hot Jupiter transiting a 12th-mag Southern-hemisphere star
- Creators
- Anderson, D. R.
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Kane, S. R.
Abstract
We report the discovery of WASP-5b, a Jupiter-mass planet orbiting a 12th-mag G-type star in the Southern hemisphere. The 1.6-d orbital period places WASP-5b in the class of very hot Jupiters and leads to a predicted equilibrium temperature of 1750 K. WASP-5b is the densest of any known Jovian-mass planet, being a factor of 7 denser than TrES-4, which is subject to similar stellar insolation, and a factor of 3 denser than WASP-4b, which has a similar orbital period. We present transit photometry and radial velocity measurements of WASP-5 (= USNO-B1 0487-0799749), from which we derive the mass, radius and density of the planet: M_P= 1.58^(+0.13)_(−0.08) M_J, R_P= 1.090^(+0.094)_(−0.058) R_J and ρ_P= 1.22^(+0.19)_(−0.24) ρ_J. The orbital period is P= 1.6284296^(+0.0000048)_(−0.0000037) d and the mid-transit epoch is T_C (HJD) = 245 4375.62466^(+0.00026)_(−0.00025).
Additional Information
© 2015 The Royal Astronomical Society. In original form 2007 December 14; received 2008 February 21; Accepted 2008 February 22; first published online June 1, 2008. The WASP consortium comprises the Universities of Keele, Leicester, St. Andrews, the Queen's University Belfast, the Open University and the Isaac Newton Group. WASP-South is hosted by the South African Astronomical Observatory (SAAO) and we are grateful for their support and assistance. Funding for WASP comes from consortium universities and the UK's Science and Technology Facilities Council.Attached Files
Published - MNRAS-2008-Anderson-L4-7.pdf
Submitted - 0801.1685v2.pdf
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Additional details
- Eprint ID
- 55514
- Resolver ID
- CaltechAUTHORS:20150304-112857372
- Science and Technology Facilities Council (STFC)
- Created
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2015-03-05Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)