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- W1808669285 abstract "We present the discoveries of six transiting hot Jupiters: WASP-87b, WASP-108b, WASP109b, WASP-110b, WASP-111b and WASP-112b. The planets havemasses of 0.51‐2.2 MJup and radii of 1.19‐1.44 RJup and are in orbits of 1.68‐3.78 d around stars with masses 0.81‐ 1.50 M⊙. WASP-111b is in a prograde, near-aligned (λ =−5± 16 ◦ ), near-circular (e< 0.10 at 2σ) orbit around a mid-F star. As tidal alignment around such a hot star is thought to be inefficient, this suggests that either the planet migrated inwards throu gh the protoplanetary disc or that scattering processes happened to leave it in a near-aligned orbit. WASP-111 appears to have transitioned from an active to a quiescent state between the 2012 and 2013 seasons, which makes the system a candidate for studying the effects of variable activity on a hot-Jupiter atmosphere. We find evidence that the mid-F star WASP-87 is a v isual binary with a mid-G star. Two host stars are metal poor: WASP-112 has [Fe/H] =−0.64± 0.15 and WASP-87 has [Fe/H] =−0.41± 0.10. The low density of WASP-112 (0.81 M⊙, 0.80± 0.04ρ⊙) cannot be matched by standard models for any reasonable value of the age of the star, suggesting it to be affected by the “radius anomaly”." @default.
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- W1808669285 date "2014-10-13" @default.
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- W1808669285 title "Six newly-discovered hot Jupiters transiting F/G stars: WASP-87b, WASP-108b, WASP-109b, WASP-110b, WASP-111b & WASP-112b ⋆" @default.
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