Fedorov Y. Kinetics of cosmic rays in heliospheric magnetic fields

The thesis is devoted to the investigation of cosmic ray (CR) propagation in heliospheric magnetic fields based on kinetic equations. The process of energetic charged particle acceleration by plasma turbulence is studied as well. On the basis of obtained kinetic equation solutions the evolution of angular distribution and energetic spectra of solar cosmic rays (SCR) is investigated. The estimates of particle injection duration and features of CR propagation in the interplanetary medium are derived. The CR transport equation taking into account the second spherical harmonic of particle angular distribution is obtained for the first time. It is shown that solutions of the new CR transport equation are characterized by better precision than the analogous solutions of the diffusion and the telegrapher's equations. The energy dependence of galactic cosmic ray anisotropy in the heliospheric magnetic fields is investigated. It is shown that high energy particle anisotropy can be caused by the local cosmic ray source. The efficiency of the CR acceleration by the large scale electric field arising in the anisotropic turbulent medium owing to alpha-effect is studied. The accelerated particle energetic spectra are examined and estimates of typical SCR acceleration times are derived.