1. Leiden Observatory, Leiden University, NL-2333 CA Leiden, The Netherlands
2. Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
3. Department of Astronomy, University of Tokyo, 7-3-1 Hongo, Bunkyo-ky, Tokyo 113-0033, Japan
4. Dipartimento di Fisica, Universitate degli Studi di Torino, via Pietro Giuria 1, I-10125 Torino, Italy
5. Center for Astronomy and Astrophysics, Technical University Berlin, Hardenbergstr. 36, D-10623 Berlin, Germany
6. Physics and Astronomy Department, Vanderbilt University, Nashville, TN 37235, USA
7. Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK
8. Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, D-50931 Köln, Germany
9. Thüringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany
10. Dipartimento di Fisica e Astronomia Galilei, Universitá di Padova, Vicolo dell’Osservatorio 3, I-35122 Padova, Italy
11. Instituto de Astrofisica de Canarias, C/ Via Lactea s/n, E-38205 La Laguna, Spain
12. Departamento de Astrofisica, Universidad de La Laguna, E-38206 La Laguna, Spain
13. Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA
14. Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
15. Sub-department of Astrophysics, Department of Physics, University of Oxford, Oxford OX1 3RH, UK
16. INAF – Osservatorio Astronomico di Palermo, Piazza del Parlamento, 1, I-90134 Palermo, Italy
17. Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA
18. Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, D-12489 Berlin, Germany
19. Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA
20. Center for Planetary Systems Habitability, University of Texas at Austin, Austin, TX 78712, USA
21. Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
22. Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokio 152-8551, Japan
23. NASA Ames Research Center, Moffet Field, CA 94035, USA
24. Astronomical Institute, Czech Academy of Sciences, Fričova 298, CZ-25165 Ondřejov, Czech Republic
25. Center for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
26. Department of Aeronautics and Astronautics, MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
27. National Astronomical Observatory of Japan, NINS, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
28. Komaba Institute for Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
29. JST, PRESTO, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
30. Astrobiology Center, NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
31. European Southern Observatory (ESO), Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile
32. Institut fuer Geologische Wissenschaften, Freie Universitaet Berlin, D-12249 Berlin, Germany
33. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
34. School of Physics and Astronomy, Monash University, VIC 3800, Australia
35. ARC Centre of Excellence for All Sky Astrophysics in Three Dimensions (ASTRO-3D), Canberra, ACT 2601, Australia
36. Astronomical Institute, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 2027/3, CZ-12116 Prague, Czech Republic
37. SETI Institute/NASA Ames Research Center, Moffet Field, CA 94035, USA
38. Department of Astronomy, University of Wisconsin-Madison, Madison, WI 53706, USA
39. Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK