WASP-23b: a transiting hot Jupiter around a K dwarf and its Rossiter-McLaughlin effect

A.~H.~M.~J. Triaud, D. Queloz, C. Hellier, M. Gillon, B. Smalley, L. Hebb, A. Collier Cameron, D. Anderson, I. Boisse, G. Hébrard, E. Jehin, T. Lister, C. Lovis, P.~F.~L. Maxted, F. Pepe, D. Pollacco, D. Ségransan, E. Simpson, S. Udry, R. West