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Wasp-7: A Bright Transiting-Exoplanet System in the Southern Hemisphere

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 2041-8205. https://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).


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-637X/690/1/L89DOIArticle
http://www.iop.org/EJ/abstract/1538-4357/690/1/L89PublisherArticle
ORCID:
AuthorORCID
Gillon, M.0000-0003-1462-7739
Queloz, D.0000-0002-3012-0316
Triaud, A. H. M. J.0000-0002-5510-8751
Wilson, D. M.0000-0001-6002-423X
Collier Cameron, A.0000-0002-8863-7828
Hebb, L.0000-0003-1263-8637
Kane, S. R.0000-0002-7084-0529
Wheatley, P. J.0000-0003-1452-2240
Street, R. A.0000-0001-6279-0552
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.
Group:Infrared Processing and Analysis Center (IPAC)
Funders:
Funding AgencyGrant Number
Keele UniversityUNSPECIFIED
University of LeicesterUNSPECIFIED
University of St. AndrewsUNSPECIFIED
Queen's University, BelfastUNSPECIFIED
The Open UniversityUNSPECIFIED
Isaac Newton Group of TelescopesUNSPECIFIED
South African Astronomical ObservatoryUNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Subject Keywords:stars: individual (WASP-7, HD 197286) – planetary systems
Issue or Number:1
Record Number:CaltechAUTHORS:HELapjl09
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:HELapjl09
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:09 Mar 2020 13:19

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