1. International Centre for Radio Astronomy Research – Curtin University, GPO Box U1987, Perth, WA 6845, Australia
2. Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
3. Department of Physics, Texas Tech University, Box 41051, Lubbock, TX 79409-1051, USA
4. Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
5. Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, D-53121 Bonn, Germany
6. Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
7. Department of Physics, University of Alberta, CCIS 4-183, Edmonton, AB T6G 2E1, Canada
8. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
9. Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, 8020, New Zealand
10. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
11. Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, NL-1098 XH Amsterdam, the Netherlands
12. Istituto Nazionale di Astrofisica – Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio Catone (Roma), Italy
13. New York University Abu Dhabi, PO Box 129188, Saadiyat Island, Abu Dhabi, UAE
14. Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA
15. Department of Astrophysics, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024-5192, USA