%0 Journal Article
%T WASP-103b: a new planet at the edge of tidal disruption
%A M. Gillon
%A D. R. Anderson
%A A. Collier-Cameron
%A L. Delrez
%A C. Hellier
%A E. Jehin
%A M. Lendl
%A P. F. L. Maxted
%A F. Pepe
%A D. Pollacco
%A D. Queloz
%A D. Segransan
%A A. M. S. Smith
%A B. Smalley
%A J. Southworth
%A A. H. M. J. Triaud
%A S. Udry
%A V. Van Grootel
%A R. G. West
%J Physics
%D 2014
%I arXiv
%R 10.1051/0004-6361/201323014
%X We report the discovery of WASP-103b, a new ultra-short-period planet (P=22.2 hr) transiting a 12.1 V-magnitude F8-type main-sequence star (1.22+-0.04 Msun, 1.44-0.03+0.05 Rsun, Teff = 6110+-160 K). WASP-103b is significantly more massive (1.49+-0.09 Mjup) and larger (1.53-0.07+0.05 Rjup) than Jupiter. Its large size and extreme irradiation (around 9 10^9 erg/s/cm^2) make it an exquisite target for a thorough atmospheric characterization with existing facilities. Furthermore, its orbital distance is less than 20% larger than its Roche radius, meaning that it might be significantly distorted by tides and might experience mass loss through Roche-lobe overflow. It thus represents a new key object for understanding the last stage of the tidal evolution of hot Jupiters.
%U http://arxiv.org/abs/1401.2784v1