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Title: WASP-14b: 7.3 M transiting planet in an eccentric orbit
Authors: Joshi, Y. C.
Pollacco, D.
Simpson, E.
Christian, D. J.
Gibson, N. P.
Keenan, F. P.
Todd, I.
Ryans, R.
Cameron, A. C.
Stempels, H. C.
Hebb, L.
Horne, K.
Smith, A. M. S.
Skillen, I.
Steele, I.
Street, R. A.
Lister, T. A.
Bouchy, F.
Hébrard, G.
Loeillet, B.
Loeillet, B.
Moutou, C.
Meaburn, J.
Smalley, B.
Anderson, D. R.
Bentley, S.
Hellier, C.
McDonald, I.
Maxted, P.
Wilson, D. M.
West, R. G.
Enoch, B.
Haswell, C. A.
Norton, A. J.
Parley, N.
Irwin, J.
Mayor, M.
Queloz, D.
Udry, S.
Perrier, C.
Pont, F.
Wheatley, P. J.
First Published: 1-Feb-2009
Publisher: Royal Astronomical Society (RAS)
Citation: Monthly Notices of the Royal Astronomical Society, 2009, 392 (4), pp. 1532-1538
Abstract: We report the discovery of a 7.3 MJ exoplanet WASP-14b, one of the most massive transiting exoplanets observed to date. The planet orbits the 10th-magnitude F5V star USNO-B1 11118−0262485 with a period of 2.243 752 d and orbital eccentricity e= 0.09. A simultaneous fit of the transit light curve and radial velocity measurements yields a planetary mass of 7.3 ± 0.5 MJ and a radius of 1.28 ± 0.08 RJ. This leads to a mean density of about 4.6 g cm−3 making it the densest transiting exoplanets yet found at an orbital period less than 3 d. We estimate this system to be at a distance of 160 ± 20 pc. Spectral analysis of the host star reveals a temperature of 6475 ± 100 K, log g= 4.07 cm s−2 and v sin i= 4.9 ± 1.0 km s−1, and also a high lithium abundance, log N(Li) = 2.84 ± 0.05. The stellar density, effective temperature and rotation rate suggest an age for the system of about 0.5–1.0 Gyr.
DOI Link: 10.1111/j.1365-2966.2008.14178.x
ISSN: 0035-8711
eISSN: 1365-2966
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2009 the authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. Deposited with reference to the publisher’s archiving policy available on the SHERPA/RoMEO website.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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