Radiation Belts during a Magnetic Field Reversal
| Autor: | O. O. Tsareva, V. Yu. Popov, Kh. V. Malova, Lev Zelenyi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Aerospace Engineering Astronomy and Astrophysics Electron Radiation 01 natural sciences Charged particle Computational physics Geomagnetic reversal symbols.namesake Dipole Earth's magnetic field Space and Planetary Science Van Allen radiation belt Physics::Space Physics 0103 physical sciences Quadrupole symbols 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Cosmic Research. 58:227-233 |
| ISSN: | 1608-3075 0010-9525 |
| Popis: | An axisymmetric model is used to study changes in the shape of the Earth’s radiation belts and energy spectra of charged particles in them during a geomagnetic field reversal. Regions of stable existence of radiation belts are obtained analytically by generalizing the Stormer theory to the case of an axisymmetric quadrupole. An reversal scenario is proposed in which it is shown that a gradual reduction of radiation belts can occur with a decrease in the dipole component of the modern geomagnetic field. The spatial and energy distributions of the flux density of protons and electrons are obtained, which made it possible to determine the maximum dose rate of radiation on various magnetic shells during the reversal process. |
| Databáze: | OpenAIRE |
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