[1] Lowell Observ, 1400 Mars Hill Rd, Flagstaff, AZ 86001 USA
[2] SNSF NCCR PlanetS, Flagstaff, AZ USA
[3] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland
[4] Univ St Andrews, Ctr Exoplanet Sci, Coll Gate, St Andrews KY16 9AJ, Fife, Scotland
[5] Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England
[6] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
[7] Univ Geneva, Observ Astron, 51 Chemin Maillettes, CH-1290 Sauverny, Switzerland
[8] Harvard Univ, Dept Phys, 17 Oxford St, Cambridge, MA 02138 USA
[9] Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Univ Rd, Belfast BT7 1NN, Antrim, North Ireland
[10] INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
[11] Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy
[12] INAF Osservatorio Astron Palermo, Piazza Parlamento 1, I-0134 Palermo, Italy
[13] INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, Italy
[14] INAF Fdn Galileo Galilei, Rambla Jose Ana Fernandez Perez 7, E-38712 Tenerife, Spain
[15] INAF Osservatorio Astron Brera, Via E Bianchi 46, I-23807 Merate, LC, Italy
[16] Univ Edinburgh, Royal Observ, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland
[17] Univ Edinburgh, Ctr Exoplanet Sci, James Clerk Maxwell Bldg,Peter Guthrie Tait Rd, Edinburgh EH9 3FD, Midlothian, Scotland
[18] INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, Italy