. (2009) The sub-Jupiter mass transiting exoplanet WASP-11b. Astronomy & Astrophysics, Vol.502 (No.1). pp. 395-400. ISSN 0004-6361

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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-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.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Astronomy & Astrophysics
Publisher:	EDP Sciences
ISSN:	0004-6361
Date:	July 2009
Volume:	Vol.502
Number:	No.1
Number of Pages:	6
Page Range:	pp. 395-400
Identification Number:	10.1051/0004-6361/200810973
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Consortium Universities, UK's Science and Technology Facilities Council, Optical Infrared Coordination network (OPTICON), Research Infrastructures Programme of the European Commission's Sixth Framework Programme, SuperWASP-N operations, Director and staff of the Observatoire de Haute-Provence, SOPHIE, La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias, UK Science and Technology Facilities Council
URI:	http://wrap.warwick.ac.uk/id/eprint/17539

Data sourced from Thomson Reuters' Web of Knowledge

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