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WASP-37b : A 1.8 M J exoplanet transiting a metal-poor star
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(2011) WASP-37b : A 1.8 M J exoplanet transiting a metal-poor star. Astronomical Journal, Vol.141 (No.1). Article no.8. doi:10.1088/0004-6256/141/1/8 ISSN 0004-6256.
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Official URL: http://dx.doi.org/10.1088/0004-6256/141/1/8
Abstract
We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an m(v) = 12.7 G2-type dwarf, with a period of 3.577469 +/- 0.000011 d, transit epoch T-0 = 2455338.6188 +/- 0.0006 (HJD; dates throughout the paper are given in Coordinated Universal Time (UTC)), and a transit duration 0.1304(-0.0017)(+0.0018) d. The planetary companion has a mass M-p = 1.80 +/- 0.17 M-J and radius R-p = 1.16(-0.06)(+0.07) R-J, yielding a mean density of 1.15(-0.15)(+0.12) rho(J). From a spectral analysis, we find that the host star has M-star = 0.925 +/- 0.120 M-circle dot, R-star = 1.003 +/- 0.053 R-circle dot, T-eff = 5800 +/- 150 K, and [Fe/H] = -0.40 +/- 0.12. WASP-37 is therefore one of the lowest metallicity stars to host a transiting planet.
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: | Astronomical Journal | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0004-6256 | ||||
Official Date: | January 2011 | ||||
Dates: |
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Volume: | Vol.141 | ||||
Number: | No.1 | ||||
Number of Pages: | 7 | ||||
Page Range: | Article no.8 | ||||
DOI: | 10.1088/0004-6256/141/1/8 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | UK's Science and Technology Facilities Council, William Penny Fellowship, European Community | ||||
Grant number: | RG226604 (EC) |
Data sourced from Thomson Reuters' Web of Knowledge
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