1. SRON Netherlands Institute for Space Research, Sorbonnelaan 2, NL-3584 CA Utrecht, The Netherlands
2. Institute of Space and Astronautical Science (ISAS), JAXA, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan
3. Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
4. RIKEN High Energy Astrophysics Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
5. NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
6. Department of Astronomy, University of Maryland, College Park, MD 20742, USA
7. Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
8. MTA-Eötvös Loránd University Lendület Hot Universe Research Group, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
9. Institute of Physics, Eötvös University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
10. Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlarská 2, 611 37 Brno, Czech Republic
11. School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
12. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
13. Research Center for the Early Universe, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
14. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
15. Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
16. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
17. Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
18. Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, The Netherlands
19. Department of Physics, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
20. Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
21. Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
22. Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
23. Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
24. Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), P.O. Box 23-141, Taipei 10617, Taiwan
25. Physics Department, The Chinese University of Hong Kong, Hong Kong S.A.R., China