1. Institute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UK
2. University of California , Berkeley, 501 Campbell Hall, 3411 Berkeley, CA 94720-3411, USA
3. Institute of Astrophysics , FORTH, GR-71110 Heraklion, Greece
4. Department of Physics, University of Warwick , Coventry CV4 7AL, UK
5. Centre for Exoplanets and Habitability, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UK
6. California Institute of Technology , Pasadena, CA 91125, USA
7. IPAC-NASA Exoplanet Science Institute Pasadena , CA 91125, USA
8. Department of Astrophysics, University of Vienna , Türkenschanzstraße 17, A-1180 Vienna, Austria
9. Konkoly Observatory, Research Centre for Astronomy and Earth Sciences , Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary