WASP-121 b: a hot Jupiter in a polar orbit and close to tidal disruption

  title={WASP-121 b: a hot Jupiter in a polar orbit and close to tidal disruption},
  author={Laetitia Delrez and Alexandre Santerne and Jose M. Almenara and D. R. Anderson and Andrew Collier-Cameron and Rodrigo F. D'iaz and Micha{\"e}l Gillon and Coel Hellier and Emmanuel Jehin and Monika Lendl and P. F. L. Maxted and Marion Neveu-VanMalle and Francesco A. Pepe and Don Pollacco and Didier Queloz and Damien S'egransan and Barry Smalley and A M S Smith and Amaury H. M. J. Triaud and St{\'e}phane Udry and Val{\'e}rie Van Grootel and Richard G. West},
We present the discovery by the WASP-South survey, in close collaboration with the Euler and TRAPPIST telescopes, of WASP-121 b, a new remarkable shortperiod transiting hot Jupiter, whose planetary nature has been statistically validated by the PASTIS software. The planet has a mass of 1.183 −0.062 MJup, a radius of 1.865 ± 0.044 RJup, and transits every 1.2749255 −0.0000025 days an active F6-type main-sequence star (V=10.4, 1.353 −0.079 M , 1.458 ± 0.030 R , Teff = 6460 ± 140 K). A notable… 

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