Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 690, Issue 1, Pages L89-L91Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/690/1/L89
Keywords
stars: individual (WASP-7, HD 197286); planetary systems
Categories
Funding
- UK's Science and Technology Facilities Council
- STFC [PP/F000081/1, PP/D000963/1, ST/G001987/1, PP/F000065/1, ST/F002599/1, PP/F000057/1, PP/D000955/1, ST/G002355/1, PP/D000890/1, ST/G002533/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/F000081/1, PP/F000065/1, PP/D000890/1, ST/G001987/1, PP/D000963/1, ST/G002533/1, ST/G002355/1, PP/F000057/1, ST/F002599/1, PP/D000955/1] Funding Source: researchfish
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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(-0.18)(+0.12) M(Jup), the radius is 0.915(-0.040)(+0.046) R(Jup), and the density is 1.26(-0.21)(+0.25) rho(Jup) (1.67(-0.28)(+0.33) g cm(-3)).
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