Institution: | Astronomy Department, University of Cape Town, 7701 Rondebosch, South Africa;South African Astronomical Observatory, PO Box 9, 7935 Observatory, South Africa;National Optical Astronomy Observatory, Tucson, PO Box 26732, AZ 85726, USA;Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;National Astrophysics and Space Science Programme, Department of Mathematics and Applied Mathematics, University of Cape Town, 7701, South Africa |