Affiliation: | Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Strasse 1, 85741 Garching, Germany;Space Research Institute (IKI), Profsoyuznaya 84/32, Moscow 117810, Russia;Harvard-Smithsonian Centre for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA;MPI für Extraterrestrische Physik, PO Box 1603, 85740 Garching, Germany |