WASP-7: The brightest transiting-exoplanet system in the Southern hemisphere

Coel Hellier , D.R. Anderson , M. Gillon , T.A. Lister , P.F.L. Maxted , D. Queloz , B. Smalley , A. Triaud

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R.G. West D.M. Wilson K. Alsubai S.J. Bentley A. Collier Cameron L. Hebb K. Horne J. Irwin S.R. Kane M. Mayor F. Pepe D. Pollacco I. Skillen S. Udry P.J. Wheatley D.J. Christian R. Enoch C.A. Haswell Y.C. Joshi A.J. Norton R. Ryans R.A. Street I. Todd

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classification 🌌 astro-ph

keywords brightesthemispherejupiter-massplanetsouthernsystemtransiting-exoplanetwasp-7b

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We report that a Jupiter-mass planet, WASP-7b, transits the V = 9.5 star HD197286 every 4.95 d. This is the brightest discovery from the WASP-South transit survey and 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 M_Jup, the radius 0.915 R_Jup, and the density 1.26 rho_Jup.

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WASP-7: The brightest transiting-exoplanet system in the Southern hemisphere

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