Kinetic Propagation of Charged Particles in a Magnetic Field at Various Directions of Their Injection
| Autor: | B. A. Shakhov, Yu. I. Fedorov, Yu. L. Kolesnyk |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Astrophysics::High Energy Astrophysical Phenomena Astronomy and Astrophysics Cosmic ray Kinetic energy 01 natural sciences Small-angle approximation Charged particle Computational physics Magnetic field Superposition principle Distribution function Space and Planetary Science 0103 physical sciences Diffusion (business) 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Kinematics and Physics of Celestial Bodies. 35:153-163 |
| ISSN: | 1934-8401 0884-5913 |
| DOI: | 10.3103/s0884591319040056 |
| Popis: | —The propagation of high-energy charged particles in the magnetic field, which is a superposition of the mean homogeneous magnetic field and magnetic inhomogenieties of various scales, is considered on the basis of the Fokker-Planck kinetic equation. The analytical expression for the cosmic ray distribution function corresponding to the instantaneous particle injection in the direction perpendicular to the regular magnetic field is obtained. The solution of the kinetic equation in the small angle approximation is applied for the case of particle emission along the mean magnetic field. It is shown that the spatial-temporal cosmic ray distribution depends substantially on the direction of particle injection. The evolution of the angular distribution of solar cosmic rays is analyzed on the basis of the derived solutions of the kinetic equation. |
| Databáze: | OpenAIRE |
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