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The sub-Jupiter mass transiting exoplanet WASP-11b
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(2009) The sub-Jupiter mass transiting exoplanet WASP-11b. Astronomy & Astrophysics, Vol.50 (No.1). pp. 395-400. doi:10.1051/0004-6361/200810973
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Official URL: http://dx.doi.org/10.1051/0004-6361/200810973
Abstract
We report the discovery of a sub-Jupiter mass exoplanet transiting a magnitude V = 11.6 host star 1SWASP J030928.54+304024.7. A simultaneous fit to the transit photometry and radial-velocity measurements yield a planet mass $M_{\rm p}$ = 0.53 $\pm$ 0.07 ${M_{\rm J}}$, radius $R_{\rm p} = 0.91^_~{R_{\rm J}}$ and an orbital period of $3.722465^{\rm +0.000006}_$ days. The host star is an early to mid-K dwarf, with a spectral analysis yielding an effective temperature of 4800 $\pm$ 100 K and log g = 4.45 $\pm$ 0.2. It is amongst the smallest, least massive and lowest luminosity stars known to harbour a transiting exoplanet. WASP-11b is the third least strongly irradiated transiting exoplanet discovered to date, experiencing an incident flux $F_{\rm p}$ = 1.9$\times$108 erg s-1 cm-2 and having an equilibrium temperature $T_{\rm eql}$ = 960 $\pm$ 70 K.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QB Astronomy | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Stars -- Motion in line of sight, Astronomical photometry, Astronomical spectroscopy, Planets -- Spectra, Planets -- Orbits | ||||
| 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. 395-400 | ||||
| DOI: | 10.1051/0004-6361/200810973 | ||||
| Status: | Peer Reviewed | ||||
| Access rights to Published version: | Open Access | ||||
| Funder: | Sixth Framework Programme (European Commission) (FP6), Optical Infrared Coordination network (OPTICON), Science and Technology Facilities Council (Great Britain) (STFC) |
Data sourced from Thomson Reuters' Web of Knowledge
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