Affiliation: | School of Chemistry &Physics, Keele University, Staffordshire ST5 5BG;Department of Physics &Astronomy, University of Southampton, Highfield, Southampton S017 1BJ;Department of Physics, University of Warwick, Coventry CV4 7AL;Department of Astrophysics, Faculty of Science, University of Nijmegen, PO Box 9010, 6500 GL Nijmegen, the Netherlands;Department of Physics &Astronomy, University of Leicester, University Road, Leicester LE1 7RH;Observatoire de Strasbourg, UniversitéLouis Pasteur, 11 rue de l'Université, 67000 Strasbourg, France;Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH |