From RATAN-600 observations with a matrix radiometer at a wavelength of 1 cm indications have been found of existence of relativistic electrons in the magnetosphere of Jupiter with energy of about 100 MeV, which demands revision of mechanisms of acceleration of cosmic rays of the solar wind with energy of a few MeV. The longitudinal distribution of radio brightness over the disk of the planet, which is much more homogeneous in comparison with latitudinal, has been obtained for the first time.
Based on a new method of multiazimuthal observations at RATAN-600 in the
decimeter range direct evidence of existence of long-duration non-thermal
radiation in the magnetosphere of the solar active region (halo) has been
found and plasma mechanisms explaining their nature have been suggested.
In co-operation with SPbSU and Beijing Observatory (China).