The 0.5M translting exoplanet WASP-13b

  title={The 0.5M translting exoplanet WASP-13b},
  author={Ian Skillen and Don Pollacco and Andrew Collier Cameron and Leslie Hebb and E. K. Simpson and François Bouchy and Damian J. Christian and Neale P. Gibson and Guillaume H'ebrard and Yogesh C. Joshi and B. Loeillet and Barry Smalley and Henricus Cornelis Stempels and Rachel A. Street and St{\'e}phane Udry and Richard G. West and D. R. Anderson and S. C. C. Barros and B. Enoch and Carole A. Haswell and Coel Hellier and Keith Horne and Jonathan M. Irwin and Francis Keenan and Tim Lister and P. F. L. Maxted and Michel Mayor and Claire Moutou and Andrew J. Norton and N. R. Parley and Didier Queloz and R. S. I. Ryans and Ian Todd and Peter J. Wheatley and D. Mark Wilson},
We report the discovery of WASP-13b, a low-mass Mp = 0.46 +0.06 −0.05 MJ transiting exoplanet with an orbital period of 4.35298 ± 0.00004 days. The transit has a depth of 9 mmag, and although our follow-up photometry does not allow us to constrain the impact parameter well (0 < b < 0.46), with radius in the range Rp ∼ 1.06−1.21 RJ the location of WASP-13b in the mass-radius plane is nevertheless consistent with H/He-dominated, irradiated, low core mass and core-free theoretical models. The G1V… 

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