| Affiliation: | Astrophysics Group, School of Chemistry and Physics, Keele University, Staffordshire ST5 5BG;Department of Astronomy, University of Cape Town, Rondebosch 7700, South Africa;South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa;School of Chemical and Physical Sciences, Victoria University, Box 600, Wellington, New Zealand;Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand;Department of Astronomy, Columbia University, 550 West 120th Street, New York, NY 10027, USA;Department of Astronomy and McDonald Observatory, University of Texas at Austin, Austin, TX 78712, USA;Department of Astronomy, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182-1221, USA;Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain;Department of Astrophysics, Oxford University, Keble Road, Oxford OX1 3RH;Astronomical Institute 'Anton Pannekoek', University of Amsterdam, and Center for High Energy Astrophysics, Kruislaan 403, NL-1098 SJ Amsterdam, the Netherlands;Department of Mathematics and Astrophysical Theory Centre, Australian National University, Canberra, ACT 0200, Australia |
