1. Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland.
2. Finnish Centre for Astronomy with ESO (FINCA), FI-20014 University of Turku, Finland.
3. Instituto de Astrofísica de Andalucía–Consejo Superior de Investigaciones Científicas (CSIC), P.O. Box 3004, 18008, Granada, Spain.
4. Departamento de Física Teórica, Facultad de Ciencias, Universidad de Zaragoza, 50019, Zaragoza, Spain.
5. School of Sciences, European University Cyprus, Diogenes Street, Engomi, 1516 Nicosia, Cyprus.
6. Departament d’Astronomia i Astrofisica, Universitat de València Estudi General, 46100 Burjassot, València, Spain.
7. School of Physics, O'Brien Centre for Science North, University College Dublin, Belfield, Dublin 4, Ireland.
8. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK.
9. Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK.
10. SRON, Netherlands Institute for Space Research, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands.
11. Department of Astrophysics/Institute for Mathematics, Astrophysics and Particle Physics, Radboud University, P.O. Box 9010, 6500GL Nijmegen, Netherlands.
12. Department of Astronomy and The Oskar Klein Centre, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden.
13. Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden.
14. Astrophysics Group, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, UK.
15. Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China.
16. Núcleo de Astronomía de la Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Av. Ejército 441, 8370191 Santiago, Chile.
17. Jodrell Bank Centre for Astrophysics, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
18. Centro de Astrobiología (CSIC-INTA), ESAC Campus, E-28692 Villanueva de la Cañada, Madrid, Spain.
19. Istituto di Radioastronomia - Istituto Nazionale di Astrofisica (INAF), Bologna, via P. Gobetti 101, 40129, Bologna, Italy.
20. European Southern Observatory, Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile.
21. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA.
22. South African Astronomical Observatory, P.O. Box 9, Observatory 7935, Cape Town, South Africa.
23. Southern African Large Telescope, P.O. Box 9, Observatory 7935, Cape Town, South Africa.
24. Institute of Physics, Department for Geophysics, Astrophysics, and Meteorology, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria.
25. Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstraße, 85748, Garching, Germany.
26. Australian Astronomical Observatory, 105 Delhi Rd, North Ryde, NSW 2113, Australia.