[1] INAF,Faculty of Science, Department of Astronomy and Space Sciences
[2] IASF-Milano,Feza Gursey Center for Physics and Mathematics
[3] Istanbul University,Centre for Space Research & School of Physics
[4] Instituto de Astrofísica de Andalucía (IAA-CSIC),Dept. of Physics
[5] INAF,Center for Astrophysics and Space Sciences
[6] IASF-Palermo,School of Physics & Astronomy
[7] Institut fuer Astronomie und Astrophysik Tuebingen,Department of Astronomy
[8] Space Research Institute of the Russian Academy of Sciences,Dipartimento di Fisica
[9] Bogazici University,Instituto de Ciencias Nucleares
[10] University College Dublin,School of Physics & Astronomy
[11] Florida State University,AIM
[12] Centrum Astronomiczne im. Mikołaja Kopernika,CEA/DRF/Irfu/Département d’Astrophysique, CNRS
[13] Polskiej Akademii Nauk,Faculty of Electrical Engineering
[14] University of California,Astronomical Institute
[15] San Diego,DARK, Niels Bohr Institute
[16] University of Leicester,National Space Institute
[17] INAF,Department of Astrophysics/IMAPP
[18] Astrophysics and Space Science Observatory,Institute of Astronomy
[19] University of Alberta,Department of Applied Physics & Astronomy, College of Sciences & Sharjah Academy for Astronomy, Space Sciences, and Technology
[20] Institut de Recherche en Astrophysique et Planétologie,Department of Physics
[21] University of Geneva,Department of Physics
[22] Università degli Studi di Cagliari,Department of Mathematics and Physics Ennio De Giorgi
[23] INAF,Department of Astronomy
[24] Osservatorio Astronomico di Brera,Núcleo de Astronomía, Facultad de Ingeniería y Ciencias
[25] INAF,Department of Physics and Astronomy
[26] Osservatorio Astronomico di Roma,Physics Department
[27] INAF,Anton Pannekoek Institute for Astronomy
[28] Istituto di Radioastronomia,Mullard Space Science Laboratory
[29] Universidad Nacional Autonoma de Mexico,Department of Physics and Astronomy
[30] INAF,undefined
[31] Capodimonte Observatory,undefined
[32] Università di Palermo,undefined
[33] Scuola Universitaria Superiore IUSS Pavia,undefined
[34] University of Ferrara,undefined
[35] University of Southampton,undefined
[36] Université Paris-Saclay,undefined
[37] Université de Paris,undefined
[38] Orme des Merisiers,undefined
[39] Czech Technical University in Prague,undefined
[40] Czech Academy of Sciences,undefined
[41] Kazan Federal University,undefined
[42] University of Copenhagen,undefined
[43] Technical University of Denmark,undefined
[44] SRON,undefined
[45] Netherlands Institute for Space Research,undefined
[46] Radboud University,undefined
[47] National Tsing Hua University,undefined
[48] Leibniz-Institut für Astrophysik Potsdam,undefined
[49] University of Texas,undefined
[50] University of Sharjah,undefined