The sub-Jupiter mass transiting exoplanet WASP-11b
. (2009) The sub-Jupiter mass transiting exoplanet WASP-11b. Astronomy & Astrophysics, Vol.502 (No.1). pp. 395-400. ISSN 0004-6361 Full text not available from this repository.
Official URL: http://dx.doi.org/10.1051/0004-6361/200810973
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-p = 0.53 +/- 0.07 M-J, radius R-p = 0.91(-0.03)(+0.06) R-J and an orbital period of 3.722465(-0.000008)(+0.000006) days. The host star is an early to mid-K dwarf, with a spectral analysis yielding an effective temperature of 4800 +/- 100 K and log g = 4.45 +/- 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-p = 1.9 x 10(8) erg s(-1) cm(-2) and having an equilibrium temperature T-eql = 960 +/- 70K.
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