Institution: | Department of Physics, University of Durham, Science Laboratories, South Road, Durham DH1 3LE;Department of Physics and Astronomy, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8P 1A1, Canada;Centre for Astrophysics &Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, Victoria 3122, Australia |