1. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
2. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
3. Department of Physics and Electronics, Rhodes University, PO Box 94, Grahamstown 6140, South Africa
4. Institute of Space Sciences (ICE, CSIC) and Institut d’Estudis Espacials de Catalunya (IEEC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
5. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA
6. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil
7. Instituto de Fisica Teorica, Universidade Estadual Paulista, Sao Paulo, Brazil
8. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK
9. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
10. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
11. Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
12. Department of Physics, University of Florida, Gainesville, FL 32611, USA
13. GRAPPA, Institute of Theoretical Physics, University of Amsterdam, Science Park 904, 1090 GL, Amsterdam
14. Lorentz Institute, Leiden University, Niels Bohrweg 2, Leiden, NL-2333 CA, The Netherlands
15. LSST, 933 North Cherry Avenue, Tucson, AZ 85721, USA
16. Observatories of the Carnegie Institution of Washington, 813 Santa Barbara St., Pasadena, CA 91101, USA
17. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
18. CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014, Paris, France
19. Institut d’Astrophysique de Paris, Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, F-75014, Paris, France
20. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
21. Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, PO Box 2450, Stanford, CA 94305, USA
22. Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP-05314-970, Brazil
23. Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil
24. National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA
25. Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA
26. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona) Spain
27. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
28. School of Physics and Astronomy, Sun Yat-Sen University, Guangzhou 510275, China
29. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
30. George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA
31. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
32. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
33. Department of Astronomy/Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
34. Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK
35. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA
36. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
37. Fakultät für Physik, Universitäts-Sternwarte, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany
38. Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland
39. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
40. Department of Physics, The Ohio State University, Columbus, OH 43210, USA
41. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA
42. Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany
43. Event Horizon Telescope, Harvard-Smithsonian Center for Astrophysics, MS-42, 60 Garden Street, Cambridge, MA 02138, USA
44. Australian Astronomical Observatory, North Ryde, NSW 2113, Australia
45. Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA
46. Département de Physique Théorique and Center for Astroparticle Physics, Université de Genev́e, 24 quai Ernest Ansermet, CH-1211 Geneva, Switzerland
47. Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA
48. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
49. Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain
50. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, Germany
51. Excellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, Germany
52. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK
53. ICTP South American Institute for Fundamental Research Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, Brazil
54. Department of Physics, University of Arizona, Tucson, AZ 85721, USA
55. Instituto de Física, UFRGS, Caixa Postal 15051, Porto Alegre, RS - 91501-970, Brazil
56. Brookhaven National Laboratory, Bldg 510, Upton, NY 11973, USA
57. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
58. Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil
59. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
60. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA