Hellier, Coel and Anderson, D. R. and Gillon, M. and Lister, T. A. and Maxted, P. F. L. and Queloz, D. and Smalley, B. and Triaud, A. H. M. J. and West, R. G. and Wilson, D. M. and Alsubai, K. and Bentley, S. J. and Collier Cameron, A. and Hebb, L. and Horne, K. and Irwin, J. and Kane, S. R. and Mayor, M. and Pepe, F. and Pollacco, D. and Skillen, I. and Udry, S. and Wheatley, P. J. and Christian, D. J. and Enoch, R. and Haswell, C. A. and Joshi, Y. C. and Norton, A. J. and Parley, N. and Ryans, R. and Street, R. A. and Todd, I. (2009) Wasp-7: A Bright Transiting-Exoplanet System in the Southern Hemisphere. Astrophysical Journal Letters, 690 (1). L89-L91. ISSN 0004-637X http://resolver.caltech.edu/CaltechAUTHORS:HELapjl09
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Abstract
We report that a Jupiter-mass planet, WASP-7b, transits the V = 9.5 star HD 197286 every 4.95 d. This is the brightest discovery from the WASP-South transit survey so far and is currently the brightest transiting-exoplanet system in the southern hemisphere. WASP-7b is among the densest of the known Jupiter-mass planets, suggesting that it has a massive core. The planet mass is 0.96+0.12 –0.18 M Jup, the radius is 0.915+0.046 –0.040 R Jup, and the density is 1.26+0.25 –0.21 ρJup (1.67+0.33 –0.28 g cm^–3).
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| Additional Information: | © 2009 The American Astronomical Society. Received 2008 May 17, accepted for publication 2008 November 17. Published 2008 December 11. Print publication: Issue 1 (2009 January 1). The WASP consortium comprises the Universities of Keele, Leicester, St. Andrews, the Queen's University Belfast, the Open University and the Isaac Newton Group. WASP-South is hosted by the South African Astronomical Observatory and we are grateful for their support and assistance. Funding for WASP comes from consortium universities and from the UK's Science and Technology Facilities Council. | ||||||||||||||||||
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| Subject Keywords: | stars: individual (WASP-7, HD 197286) – planetary systems | ||||||||||||||||||
| Record Number: | CaltechAUTHORS:HELapjl09 | ||||||||||||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:HELapjl09 | ||||||||||||||||||
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||
| ID Code: | 12704 | ||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||
| Deposited By: | Archive Administrator | ||||||||||||||||||
| Deposited On: | 20 Dec 2008 23:36 | ||||||||||||||||||
| Last Modified: | 26 Dec 2012 10:39 |
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