1. Univ Lyon, Univ Claude Bernard Lyon 1, Ens de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230 Saint-Genis-Laval, France
2. Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut, M’onchhofstr 12-14, D-69120 Heidelberg, Germany
3. Centre for Exoplanets and Habitability, University of Warwick, Coventry CV4 7AL, UK
4. Department of Physics, University of Warwick, Coventry CV4 7AL, UK
5. Università degli Studi di Milano, Dipartimento di Fisica, Via Giovanni Celoria 16, I-20133 Milano, Italy
6. School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia