WASP Consortium (Including: Pollacco, Don and Wheatley, Peter J.). (2008) WASP-3b: a strongly irradiated transiting gas-giant planet. Monthly Notices of the Royal Astronomical Society, Vol.385 (No.3). pp. 1576-1584. ISSN 0035-8711

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Abstract

We report the discovery of WASP-3b, the third transiting exoplanet to be discovered by the WASP and SOPHIE collaboration. WASP-3b transits its host star USNO-B1.0 1256-0285133 every 1.846 834 +/- 0.000 002 d. Our high-precision radial velocity measurements present a variation with amplitude characteristic of a planetary-mass companion and in phase with the light curve. Adaptive optics imaging shows no evidence for nearby stellar companions, and line-bisector analysis excludes faint, unresolved binarity and stellar activity as the cause of the radial velocity variations. We make a preliminary spectroscopic analysis of the host star and find it to have T-eff = 6400 +/- 100 K and log g = 4.25 +/- 0.05 which suggests it is most likely an unevolved main-sequence star of spectral type F7-8V. Our simultaneous modelling of the transit photometry and reflex motion of the host leads us to derive a mass of 1.76(-0.14)(+0.08) M-J and radius 1.31(-0.14)(+0.07) R-J for WASP-3b. The proximity and relative temperature of the host star suggests that WASP-3b is one of the hottest exoplanets known, and thus has the potential to place stringent constraints on exoplanet atmospheric models.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Extrasolar planets, Astronomical photometry
Journal or Publication Title:	Monthly Notices of the Royal Astronomical Society
Publisher:	Wiley
ISSN:	0035-8711
Date:	11 April 2008
Volume:	Vol.385
Number:	No.3
Number of Pages:	9
Page Range:	pp. 1576-1584
Identification Number:	10.1111/j.1365-2966.2008.12939.x
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
References:	Anderson D. et al., 2008, MNRAS, submitted Arras P., Bildsten L., 2006, ApJ, 650, 394 Bakos G. A., Noyes R.W., Kov´acs G., Stanek K. Z., Sasselov D. D., Domsa I., 2004, PASP, 116, 266 Berry R., Burnell J., 2005, The Handbook of Astronomical Image Processing, 2nd edn. Willmann-Bell, Richmond, VA Blackwell D. E., Shallis M. J., 1977, MNRAS, 180, 177 Bouchy F., The Sophie Team, 2006, in Arnold L., Bouchy F., Moutou C., eds, Tenth Anniversary of 51 Peg-b: Status of and Prospects for Hot Jupiter Studies. Frontier Goup, Paris, p. 319 Burke C. J. et al., 2007, ApJ, 671, 2115 Burrows A., Hubeny I., Budaj J., Hubbard W. B., 2007, ApJ, 661, 502 Charbonneau D., Brown T. M., Latham D. W., Mayor M., 2000, ApJ, 529, L45 Christian D. et al., 2006, MNRAS, 372, 1117 Claret A., 2000, A&A, 363, 1081 Clarkson W. et al., 2007, MNRAS, 381, 851 Collier Cameron A. et al., 2006, MNRAS, 373, 799 Collier Cameron A. et al., 2007a, MNRAS, 375, 951 Collier Cameron A. et al., 2007b, MNRAS, 380, 1230 Dunham E. W., Mandushev G. I., Taylor B. W., Oetiker B., 2004, PASP, 116, 1072 Ford E. B., 2006, ApJ, 642, 505 Fortney J. J., Saumon D., Marley M. S., Lodders K., Freedman R. S., 2006, ApJ, 642, 495 Fortney J. J., Marley M. S., Barnes J. W., 2007, ApJ, 659, 1661 Gaudi B. S., 2005, ApJ, 628, L73 Gaudi B. S., Seager S., Mallen-Ornelas G., 2005, ApJ, 623, 472 Girardi L., Bressan A., Bertelli G., Chiosi C., 2000, A&AS, 141, 371 Gregory P. C., 2007, MNRAS, 374, 1321 Gray D. F., 1988, Lectures on Spectral-line Analysis: F, G, and K Stars. The Publisher, Arva, Ontario Gu P., Bodenheimer P. H., Lin D. N. C., 2004, ApJ, 608, 1076 Guillot T., Santos N. C., Pont F., Iro N., Melo C., Ribas I., 2006, A&A, 453, L21 Harrington J., Luszcz S., Seager S., Deming D., Richardson L. J., 2007, Nat, 447, 691 Henry G. W., Marcy G. W., Butler R. P., Vogt S. S., 2000, ApJ, 529, L41 Holman M. J. et al., 2006, ApJ, 652, 1715 Horne K. D., 2003, in Deming D., Seager S., eds, ASP Conf. Ser. Vol. 294, Scientific Frontiers of Exoplanet Research. Astron. Soc. Pac., San Francisco, p. 361 Irwin M., Lewis J., 2001, New Astron. Rev., 45, 105 Lister T. et al., 2007, MNRAS, 379, 647 Mandel K., Agol E., 2002, ApJ, 580, L171 Mayor M., Queloz D., 1995, Nat, 378, 355 Mazeh T., Zucker S., Pont F., 2005, MNRAS, 356, 955 McCullough P. R. et al., 2006, ApJ, 648, 1228 O’Donovan F. T. et al., 2006, ApJ, 644, 1237 Piskunov N. E., Valenti J. A., 2002, A&A, 385, 1095 Pollacco D. et al., 2006, PASP, 118, 1407 Pont F., Zucker S., Queloz D., 2006, MNRAS, 373, 231 Queloz D. et al., 2001, A&A, 379, 279 Santos N. C. et al., 2002, A&A, 392, 215 Sato B. et al., 2005, ApJ, 633, 465 Sestito P., Randich S., 2005, A&A, 442, 615 Smith A. et al., 2006, MNRAS, 373, 1151 Southworth J., Wheatley P. J., Sams G., 2007, MNRAS, 379, L11 Sozzetti A., Torres G., Charbonneau D., Latham D.W., Holman M. J.,Winn J. N., Laird J. B., O’Donavan F. T., 2007, ApJ, 664, 1190 Street R. A. et al., 2007, MNRAS, 379, 816 Stempels H. C., Collier Cameron A., Hebb L., Smalley B., Frandsen S., 2007, MNRAS, 379, 773 Tegmark M. et al., 2004, Phys. Rev. D, 69, 103501 Tingley B., 2004, A&A, 425, 1125 Udalski A. et al., 2002, Acta Astron., 52, 1 Valenti J. A., Fischer D., 2005, ApJS, 159, 141 Valenti J. A., Piskunov N., 1996, A&AS, 118, 595 Wilson D. et al., 2008, ApJ, preprint (arXiv:0801.1509)
URI:	http://wrap.warwick.ac.uk/id/eprint/30292

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