Affiliation: | a Astrophysics Division, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, U.K. b Mullard Space Science Laboratory, Holmbury St Mary, Dorking, Surrey RH5 6NT, U.K. c Code 682.3, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A. d Institute of Theoretical Astrophysics, University of Oslo, PO Box 1029, Blindern, 0315, Oslo, Norway e Max-Planck-Institute-für-Extraterrestrische-Physik, D-85748, Garching, Germany f ESA, Space Science Department, ESTEC, PO Box 299, 2200 AG, Noordwijk, The Netherlands g Institut d'Astrophysique Spatiale, Université Paris XI, 91405, Orsay Cedex, France h Department Applied Maths and Theoretical Physics, Silver Street, Cambridge CB3 9EW, U.K. |