1. Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany
2. Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicu na Mackenna 4860, 782-0436 Macul, Santiago, Chile
3. Millennium Institute of Astrophysics, Av. Vicu na Mackenna 4860, 782-0436 Macul, Santiago, Chile
4. Department of Astronomy/Steward Observatory, The University of Arizona, 933 N. Cherry Avenue, Tucson, AZ 85721, USA
5. Lunar and Planetary Laboratory, The University of Arizona, 1640 E. Univ. Blvd. Tucson, AZ 85721, USA
6. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 01238, USA
7. Las Campanas Observatory, Carnegie Institution of Washington, Colina el Pino, Casilla 601 La Serena, Chile
8. Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, CH-3012, Bern, Switzerland
9. Observatoire de Geneve, Chemin des Maillettes 51, CH-1290 Versoix, Switzerland
10. Leiden Observatory, Leiden University, Postbus 9513, NL-2300 RA Leiden, the Netherlands
11. European Southern Observatory, Alonso de Córdova 3107, Casilla 19001, Santiago, Chile
12. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
13. Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA