Affiliation: | UniversitéParis 7, Fédération APC, 2 place Jussieu, 75005 Paris, France;Service d'Astrophysique, DSM/DAPNIA/SAp, CEA-Saclay, Bat. 709, L'Orme des Merisiers F-91 191 Gif-sur-Yvette Cedex, France;Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes MK7 6AA;Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;Osservatorio Astronomico di Brera, Via Brera, 28, 20121 Milano, Italy;Astronomy department, The University of Texas at Austin, 1 University Station C1400, Austin, TX 78712-0259, USA;Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ;Laboratory for High-Energy Astrophysics, NASA Goddard Space Flight Centre, Greenbelt, MD 20771, USA;Department of Physics, Purdue University, 1396 Physics Building, West Lafayette, IN 47907-1396, USA |