1. Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr 12-14, D-69120 Heidelberg, Germany
2. Département de physique, Université de Montréal, Montréal, Québec H3C 3J7, Canada
3. Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, Liverpool L3 5RF, UK
4. INAF – Osservatorio di Astrofisica e Scienza dello Spazio, via Gobetti 93/3, I-40129 Bologna, Italy
5. INAF – Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy
6. Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal
7. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
8. Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio av. 3, LT-10257 Vilnius, Lithuania
9. Dipartimento di Fisica & Astronomia, Università degli Studi di Bologna, via Gobetti 93/2, I-40129 Bologna, Italy
10. School of Physics, University of New South Wales, Sydney NSW 2052, Australia
11. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
12. Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomía, s/n, E-18008 Granada, Spain
13. Lund Observatory, Department of Astronomy and Theoretical Physics, Box 43, SE-221 00 Lund, Sweden
14. INAF – Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, I-90134 Palermo, Italy
15. Department of Physics, McWilliams Center for Cosmology, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
16. Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden
17. Dipartimento di Fisica e Astronomia, Sezione Astrofisica, Università di Catania, via S. Sofia 78, I-95123 Catania, Italy
18. Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, PL-00-716 Warsaw, Poland
19. Instituto de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Av. Gran Bretaña 1111, Valparaíso, Chile
20. Núcleo Milenio Formación Planetaria - NPF, Universidad de Valparaíso, Av. Gran Bretaña 1111, Valparaíso, Chile
21. Dipartimento di Fisica e Astronomia, Università di Padova, Vicolo dell’Osservatorio 3, I-35122 Padova, Italy
22. School of Physics and Astronomy, Monash University, Clayton 3800, Victoria, Australia
23. Faculty of Information Technology, Monash University, Clayton 3800, Victoria, Australia
24. Departamento de Didáctica, Universidad de Cádiz, E-11519 Puerto Real, Cádiz, Spain
25. Observational Astrophysics, Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala, Sweden
26. Núcleo de Astronomía, Universidad Diego Portales, Av. Ejercito 441, Santiago de Chile
27. Laboratoire d’astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny, CH-1290 Versoix, Switzerland
28. Departamento de Ciencias Fisicas, Universidad Andres Bello, Fernandez Concha 700, Las Condes, Santiago, Chile