Affiliation: | Universitàdi Torino, Dipartimento di Fisica Generale 'Amedeo Avogadro', Via P. Giuria 1, I-10125 Torino, Italy;Max-Planck Institut für Astrophysik, Karl-Schwarzschild-Strasse 1, D-85741 Garching, Germany;Department of Physics, University of Durham, South Road, Durham DH1 3LE;Canadian Astronomy Data Center, Hertzberg Institute of Astrophysics, 5071 W. Saanich Road, Victoria, BC Canada, V8X 4M6;Center for Astrophysics and Space Astronomy, University of Colorado, CO 80309, USA |