WASP-180Ab: Doppler tomography of a hot Jupiter orbiting the primary star in a visual binary

  title={WASP-180Ab: Doppler tomography of a hot Jupiter orbiting the primary star in a visual binary},
  author={L. Y. Temple and Coel Hellier and D. R. Anderson and Khalid Barkaoui and François Bouchy and D J A Brown and Artem Burdanov and Andrew Collier Cameron and Laetitia Delrez and Elsa Ducrot and D. F. Evans and Micha{\"e}l Gillon and Emmanuel Jehin and Monika Lendl and P. F. L. Maxted and J. McCormac and C. A. Murray and Louise D. Nielsen and Francesco A. Pepe and Don Pollacco and Didier Queloz and Damien S{\'e}gransan and Barry Smalley and S. Thompson and Amaury H. M. J. Triaud and Oliver Turner and St{\'e}phane Udry and Richard G West and Benkhaldoun Zouhair},
  journal={Monthly Notices of the Royal Astronomical Society},
We report the discovery and characterization of WASP-180Ab, a hot Jupiter confirmed by the detection of its Doppler shadow and by measuring its mass using radial velocities. We find the 0.9  ±  0.1 MJup, 1.24  ±  0.04 RJup planet to be in a misaligned, retrograde orbit around an F7 star with Teff  =  6500 K and a moderate rotation speed of vsin i⋆  =  19.9 km s−1. The host star is the primary of a V  =  10.7 binary, where a secondary separated by ∼5 arcsec (∼1200 au) contributes ∼ 30 per cent… 
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