1. Department of Physics, University of Alberta , Edmonton, AB T6G 2E1, Canada
2. Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University , 1800 Sherman Avenue, Evanston, IL 60201, USA
3. Department of Physics and Astronomy, University of Utah , Salt Lake City, UT 84112, USA
4. Department of Astronomy, University of Washington , Box 351580, U.W., Seattle, WA 98195-1580, USA
5. Center for Computational Astrophysics, Flatiron Institute , 162 Fifth Avenue, New York, NY 10010, USA
6. Department of Astronomy, University of Michigan , 1085 S. University Avenue, Ann Arbor, MI 48105, USA
7. Laboratoire d’Astrophysique de Bordeaux, Univ. Bordeaux, CNRS , B18N, Allée Geoffroy Saint-Hilaire, F-33615 Pessac, France
8. Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
9. Division of Physics, Mathematics, and Astronomy, California Institute of Technology , 1200 E California Boulevard, Pasadena, CA 91125, USA
10. Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA
11. Center for Cosmology and Astroparticle Physics, The Ohio State University , 191 West Woodruff Avenue, Columbus, OH 43210, USA
12. Minnesota Institute for Astrophysics , 116 Church Street SE, Minneapolis, MN 55455, USA