Affiliation: | Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, D-80805 Munich, Germany;Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation of the Russian Academy of Sciences, IZMIRAN, Troitsk, Moscow Region, 142190, Russia;AHEP Group, Instituto de Física Corpuscular –C.S.I.C./Universitat de València, Edificio Institutos de Paterna, Apt 22085, E-46071 València, Spain;DAPNIA/DSM/Service d'Astrophysique, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France |