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The 0.5MJ transiting exoplanet WASP-13b
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(2009) The 0.5MJ transiting exoplanet WASP-13b. Astronomy & Astrophysics, Vol.50 (No.1). pp. 391-394. doi:10.1051/0004-6361/200912018 ISSN 0004-6361.
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Official URL: http://dx.doi.org/10.1051/0004-6361/200912018
Abstract
We report the discovery of WASP-13b, a low-mass $ M_{\rm p} = 0.46 ^_~M_J$ transiting exoplanet with an orbital period of 4.35298 $\pm$ 0.00004 days. The transit has a depth of 9 mmag, and although our follow-up photometry does not allow us to constrain the impact parameter well (0 < b < 0.46), with radius in the range $R_{\rm p}$ ~ 1.06-1.21 RJ the location of WASP-13b in the mass-radius plane is nevertheless consistent with H/He-dominated, irradiated, low core mass and core-free theoretical models. The G1V host star is similar to the Sun in mass $(M__ ~M_{\odot})$ and metallicity ([M/H] = 0.0$\pm$0.2), but is possibly older ( $8.5^_{\rm -4.9}$ Gyr).
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Wide Angle Search for Planets project, Extrasolar planets -- Research, Planetary theory, Astronomical photometry -- Great Britain, Double stars -- Motion in line of sight | ||||
Journal or Publication Title: | Astronomy & Astrophysics | ||||
Publisher: | EDP Sciences | ||||
ISSN: | 0004-6361 | ||||
Official Date: | July 2009 | ||||
Dates: |
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Volume: | Vol.50 | ||||
Number: | No.1 | ||||
Page Range: | pp. 391-394 | ||||
DOI: | 10.1051/0004-6361/200912018 | ||||
Status: | Peer Reviewed | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Funder: | Science and Technology Facilities Council (Great Britain) (STFC) |
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