1. Max Planck Institute for Astrophysics , Karl-Schwarzschild-Str. 1, D-85741 Garching , Germany
2. Institute for Fundamental Physics of the Universe , via Beirut 2, I-34151 Trieste , Italy
3. Department of Physics and Astronomy, York University , 4700 Keele Street, Toronto, ON M3J 1P3 , Canada
4. Department of Physics, The University of Texas at Dallas , 800 W Campbell Rd, Richardson, TX 75080 , USA
5. Department of Physics & Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139 , USA
6. The NSF AI Institute for Artificial Intelligence and Fundamental Interactions, Massachusetts Institute of Technology , Cambridge, MA 02139 , USA
7. Center for Astrophysics | Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138 , USA
8. Department of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305 , USA
9. TAPIR, California Institute of Technology , Pasadena, CA 91125 , USA
10. Argelander Institut für Astronomie , Auf dem Hügel 71, D-53121 Bonn , Germany
11. Department of Physics and Astronomy, University of Southern California , Los Angeles, CA 90007 , USA