1. Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy , Evanston, IL 60201 , USA
2. DARK, Niels Bohr Institute, University of Copenhagen , Jagtvej 128, DK-2200 Copenhagen , Denmark
3. Physics and Astronomy Department, University of California , Los Angeles, CA 90095-1547 , USA
4. Institute for Astronomy, University of Hawaii , 2680 Woodlawn Drive, Honolulu, HI 96822 , USA
5. Department of Astronomy and Astrophysics, University of California , Santa Cruz, CA 95064 , USA
6. David A. Dunlap Department of Astronomy and Astrophysics, University of Toronto , 50 St. George Street, Toronto, Ontario M5S 3H4 , Canada
7. Physics Department, Leach Science Center, Auburn University , Auburn, AL 36849 , USA
8. Space Telescope Science Institute , Baltimore, MD 21218 , USA
9. Department of Physics and Astronomy, The Johns Hopkins University , Baltimore, MD 21218 , USA
10. The Thacher School , 5025 Thacher Rd., Ojai, CA 93023 , USA
11. Department of Astronomy and Astrophysics, The Pennsylvania State University , University Park, PA 16802 , USA
12. Institute for Computational and Data Sciences, The Pennsylvania State University , University Park, PA 16802 , USA
13. Institute for Gravitation and the Cosmos, The Pennsylvania State University , University Park, PA 16802 , USA
14. Department of Astronomy, University of Illinois at Urbana-Champaign , 1002 W. Green St., IL 61801 , USA