Affiliation: | (1) Moscow State University, Vorob’evy gory, Moscow, 119899, Russia;(2) Max-Planck-Institut fuer Astrophysik, Karl-Schwarzschild-Strasse 1, 86740 Garching bei Muenchen, Germany;(3) Space Research Institute, Russian Academy of Sciences, Profsoyuznaya ul. 84/32, Moscow, 117810, Russia |