Affiliation: | Department of Physics, University of Strathclyde, Glasgow G4 0NG;Centro de Física, IVIC, PO Box 21827, Caracas 1020A, Venezuela;Universitätssternwarte München, Scheinerstraße 1, D-81679, München, Germany;Department of Astronomy, Ohio State University, OH 43210-1173, USA;LUTH, Observatoire de Paris, F-92195, Meudon, France;NASA Goddard Space Flight Center, Code 662, Greenbelt, MD 20771, USA;Department of Physics and Astronomy, University College London, London WC1E 6BT |