• DOI:10.1051/0004-6361/201220561
• Corpus ID: 53687206

WASP-64 b and WASP-72 b : two new transiting highly irradiated giant planets

@article{Gillon2013WASP64BA,
  title={WASP-64 b and WASP-72 b : two new transiting highly irradiated giant planets},
  author={Micha{\"e}l Gillon and D. R. Anderson and Andrew Collier-Cameron and Amanda P. Doyle and Aur{\'e}lie Fumel and Coel Hellier and Emmanuel Jehin and Monika Lendl and P. F. L. Maxted and Josefina Montalb{\'a}n and Francesco A. Pepe and Don Pollacco and Didier Queloz and Damien S{\'e}gransan and A M S Smith and Barry Smalley and John Southworth and Amaury H. M. J. Triaud and St{\'e}phane Udry and Richard G. West},
  journal={Astronomy and Astrophysics},
  year={2013},
  volume={552},
  pages={13}
}

• M. Gillon, D. Anderson, +17 authors R. West
• Published 16 October 2012
• Geology, Physics
• Astronomy and Astrophysics

We report the discovery by the WASP transit survey of two new highly irradiated giant planets. WASP-64 b is slightly more massive (1.271 ± 0.068 MJup )a nd larger (1.271 ± 0.039 RJup) than Jupiter, and is in very-short (a = 0.02648 ± 0.00024 AU, P = 1.5732918 ± 0.0000015 days) circular orbit around a V = 12.3 G7-type dwarf (1.004 ± 0.028 M� ,1 .058 ± 0.025 R� , Teff = 5500 ± 150 K). Its size is typical of hot Jupiters with similar masses. WASP-72 b has also a mass a bit higher than Jupiter’s (1.461 +0.059 −0.056 MJup) and orbits very close (0.03708 ± 0.00050 AU, P = 2.2167421 ± 0.0000081 days) to a bright (V = 9.6) and moderately evolved F7-type star (1.386 ± 0.055 M� ,1 .98 ± 0.24 R� , Teff = 6250 ± 100 K). Despite its extreme irradiation (∼5.5 × 10 9 erg s −1 cm −2 ), WASP-72 b has a moderate size (1.27 ± 0.20 RJup) that could suggest a significant enrichment in heavy elements. Nevertheless, the errors on its physical parameters are still too high to draw any strong inference on its internal structure or its possible peculiarity.