1. Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
2. Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA
3. Center for Mulitmessenger Astrophysics, Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USA
4. Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
5. Department of Physics, Gradaute School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
6. Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA); Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
7. National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan
8. The Graduate University for Advanced Studies, SOKENDAI, Mitaka, Tokyo 181-8588, Japan
9. Academia Sinica Institute of Astronomy and Astrophysics, Hilo, HI 96720, USA
10. Department of Physics and Astronomy, University of Hawai’i at Mãnoa, Honolulu, HI 96822, USA
11. Astrophysical Institute; Department of Physics and Astronomy, Ohio University, Athens, OH 45701, USA
12. Research Center for the Early Universe; Department of Physics, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
13. Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA