1. Department of Physics & Astronomy and Leicester Institute of Space & Earth Observation, University of Leicester, University Road, Leicester LE1 7RH, UK
2. Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
3. Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain
4. Astronomical Institute Anton Pannekoek, University of Amsterdam, PO Box 94249, NL-1090 GE Amsterdam, the Netherlands
5. Department of Physics, University of Warwick, Coventry CV4 7AL, UK
6. Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF, UK
7. NASA’s Goddard Space Flight Center, Greenbelt, MD 20771, USA
8. Joint Space-Science Institute, University of Maryland, College Park, MD 20742, USA
9. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
10. Astrophysical Institute, Department of Physics and Astronomy, Ohio University, Athens, OH 45701, USA
11. INAF-Osservatorio Astronomico di Brera, Via Bianchi 46, I-23807 Merate, Italy
12. College of Science and Mathematics, University of the Virgin Islands, #2 Brewers Bay Road, Charlotte Amalie, USVI 00802
13. INAF - Osservatorio Astronomico di Roma, Via Frascati 33, 00040, I-00078, Monte Porzio Catone (RM), Italy
14. ASI-Science Data Centre, Via del Politecnico, snc, I-00133 Rome, Italy
15. INAF-IASF Milano, Via E. Bassini 15, I-20133 Milano, Italy
16. APC, Astroparticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, Rue Alice Domon et Léonie Duquet, F-75205 Paris Cedex 13, France
17. Centre for Astrophysics and Cosmology, University of Nova Gorica, Vipavska 11c, 5270 Ajdovščina, Slovenia
18. Centre for Astrophysics and Cosmology, Science Institute, University of Iceland, Dunhagi 5, 107 Reykjavík, Iceland
19. Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstrasse, D-85748 Garching, Germany
20. Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK
21. Department of Astronomy, University of California, 501 Campbell Hall, Berkeley, CA 94720-3411, USA
22. Istituto di Astrofisica Spaziale E Fisica Cosmica di Bologna Area della Ricerca, via Piero Gobetti, 101, I-40129 Bologna, Italy
23. Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel
24. Heidelberger Institut für Theoretische Studien, Schloss-Wolfsbrunnenweg 35, D-69118 Heidelberg, Germany
25. GEPI, Observatoire de Paris, PSL Research University, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, Place Jules Janssen, F-92195 Meudon, France
26. Department of Astrophysics, Radboud University Nijmegen, P.O. Box 9010, NL-6500 GL Nijmegen, The Netherlands
27. CAS Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China