1. South African Astronomical Observatory, PO Box 9, 7935 Observatory, South Africa
2. Astronomy Department, University of Cape Town, 7701 Rondebosch, South Africa
3. X-ray and Observational Astronomy Group, Department of Physics & Astronomy, University of Leicester, LE1 7RH, UK
4. University College London, Mullard Space Science Laboratory, Holmbury St. Mary, Dorking RH5 6NT, UK
5. Astrophysics Research Institute, Liverpool John Moores University, IC2 Liverpool Science Park, Liverpool, L3 5RF, UK
6. Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, USA
7. Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland
8. Physics Department, Lancaster University, Lancaster, LA1 4YB, UK
9. INAF–Osservatorio di Padova, vicolo dell’ Osservatorio 5, I-35122 Padova, Italy
10. Department of Astronomy, University of Wisconsin, 475 N. Charter Str., Madison, WI 53704, USA
11. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
12. Southern African Large Telescope Foundation, PO Box 9, 7935 Observatory, Cape Town, South Africa
13. Special Astrophysical Observatory of RAS, Nizhnij Arkhyz, Karachai-Circassia 369167, Russia
14. CIDMA, Departamento de Física, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
15. Instituto de Telecomunicações, Campus de Santiago, 3810-193 Aveiro, Portugal
16. Department of Physics and Astronomy, Botswana International University of Science & Technology, Private Bag 16, Palapye, Botswana
17. Center for Data Intensive and Time Domain Astronomy, Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA