1. Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA.
2. Department of Physics, University of California, Santa Barbara, Broida Hall, Mail Code 9530, Santa Barbara, CA 93106–9530, USA.
3. Department of Astronomy, University of California, Berkeley, CA 94720–3411, USA.
4. Lawrence Berkeley National Laboratory, Mail Stop 50B-4206, 1 Cyclotron Road, Berkeley, CA 94720, USA.
5. Department of Physics (Astrophysics), University of Oxford, Keble Road, Oxford OX1 3RH, UK.
6. Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel.
7. Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106, USA.
8. University of California Observatories, Lick Observatory, University of California, Santa Cruz, CA 95064, USA.
9. McDonald Observatory, University of Texas at Austin, Austin, TX 78712, USA.
10. Racah Institute of Physics, Hebrew University of Jerusalem, 91904, Israel.
11. Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
12. Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino, Casilla 601, Chile.
13. Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
14. Center for Astrophysics and Space Sciences, University of California San Diego, La Jolla, CA 92093–0424, USA.
15. Department of Physics and Astronomy, Dartmouth College, Hanover, NH, USA.
16. Institute for the Physics and Mathematics of the Universe, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8583, Japan.
17. Minerva Fellow, Max Planck Institute for Astrophysics, Karl Schwarzschild Strasse 1, D-85741 Garching, Germany.
18. Benoziyo Center for Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel.
19. University of Toronto, 50 St. George Street, Toronto M5S 3H4, Ontario, Canada.
20. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
21. School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel.