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WASP-4b : a 12th magnitude transiting hot Jupiter in the southern hemisphere
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(2008) WASP-4b : a 12th magnitude transiting hot Jupiter in the southern hemisphere. Astrophysical Journal Letters, Vol.675 (No.2). L113-L116. doi:10.1086/586735 ISSN 2041-8205.
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Official URL: http://iopscience.iop.org/1538-4357/675/2/L113
Abstract
We report the discovery of WASP-4b, a large transiting gas-giant planet with an orbital period of 1.34 days. This is the first planet to be discovered by the SuperWASP-South observatory and CORALIE collaboration and the first planet orbiting a star brighter than 16th magnitude to be discovered in the southern hemisphere. A simultaneous fit to high-quality light curves and precision radial velocity measurements leads to a planetary mass of 1.22(-0.08)(+0.09) M-Jup and a planetary radius of 1.42(-0.04)(+0.07) R-Jup. The host star is USNO-B1.0 0479-0948995, a G7 V star of visual magnitude 12.5. As a result of the short orbital period, the predicted surface temperature of the planet is 1761 K, making it an ideal candidate for detections of the secondary eclipse at infrared wavelengths.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Astrophysical Journal Letters | ||||
Publisher: | IOP Publishing Ltd | ||||
ISSN: | 2041-8205 | ||||
Official Date: | 10 March 2008 | ||||
Dates: |
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Volume: | Vol.675 | ||||
Number: | No.2 | ||||
Number of Pages: | 4 | ||||
Page Range: | L113-L116 | ||||
DOI: | 10.1086/586735 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Data sourced from Thomson Reuters' Web of Knowledge
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