[en] Indirect data on the charge composition of electrons in the Earth's and Jupiter's radiation belts are considered. Possibilities for experimental measuring of the charge sign, energy spectrum and spatial distribution of high energy electrons (10¹-10³ MeV) are discussed. It is suggested to observe the synchrotron radiation in the centimetre waves range from the regions adjacent to the geomagnetic equator

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[en] Results of investigations of gamma radiation of the Galaxy in the energy range of 50-5000 MeV, are discussed. The total Galaxy luminescence in gamma rays for energies above 100 MeV is 5x10³⁸ erg/s and is concentrated in a narrow band of +-10 deg from the galactic equator. The central part of the Galaxy in the longtitude interval l=+-60 deg from the Galaxy centre is singled out in the distribution of the intensity of gamma radiation along the galactic equator. The main part of gamma radiation (almost 90%) is made by the continuous component. The dependence of the volumetric luminescence of the galactic substance on the distance to the Galaxy centre is calculated according to the distribution of gamma radiation in longtitude and lattitude. A considerable increase in the gamma radiation density in the region of the Large Galaxy Ring is found which is almost completely explained by a high concentration of molecular hydrogen. The problem of cosmic ray origin is considered. The preference is given to the galactic model. The important problem of the correlation of different components of cosmic rays requires more through measurements of the energetic spectra of gamma radiation, first of all, in the energy range of 10-50 MeV

[en] A method to determine the direction of gamma-quanta beam at E_γ >100 MeV by detecting electron-positron pairs formed by gamma-quanta in the working substance is described. To increase the determination accuracy of gamma-quanta beam direction monocrystal is used as the working substance. The method suggested comprises the following procedures: determination of angular dependence of monocrystal detecting efficiency, scanning of monocrystal crystallographic axis in the given range of angles, measurement of the dependence of counting rate of electron-positron pairs on crystallographic axis position. The direction of gamma-beams is determined by comparing the counting rate dependence with angular dependence of monocrystal detecting efficiency and by establishing the shift of one dependence as to the other

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[en] Considered are observable data on two discrete sources of gamma quanta: Cyg X-3 galactic source and NGC4151 extragalactic object. Experimental data give additional data in favour of the discrete gamma radiation model. According to the model both gamma quantum flux from Galaxy and isotropic gamma radiation background are formed by the great number of forbidden discrete sources

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[en] The periodic gamma-ray radiation with energy 10⁸ and 10¹² eV from the galactic source Cyg X-3 is analyzed. It is shown, that position of gamma-ray pulse at the light curve for the period P=₁=48h (phase phi) depends on the interval of phases phi of the period P₂=34.1 d, i.e. the pulse appears near the phase phi--0.2 if phi=0-0.5 and near phi=0.6 if phi=0.5-1.0. This dependence allows to remove the discrepancies between different experimental data and can be explained by relativistic precession of the orbit of the binary system the mass of which is approximately 10³ M* (M* is the solar mass)

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