| Affiliation: | Department of Physics and Astronomy, University of Wales Cardiff, PO Box 913, Cardiff CF24 3YB;Mullard Space Science Laboratory, University College London, Surrey RH5 6NT;Herzberg Institute for Astrophysics, Dominion Astronomical Observatory, National Research Council, Canada;Observatoire de Paris, Section de Meudon, DAEC, 92195 Meudon Principal Cedex, France;Department of Astronomy and Astrophysics, University of Toronto, Canada;Physics Department, Blackett Laboratory, Imperial College, London;UK Astronomical Technology Centre, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ;Department of Astronomy, University of Virginia, PO Box 3818, Charlottesville, VA 22903, USA |
