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Cosmic ray particles propagation in the Earth’s magnetic field defined with IGRF and CHAOS models
- Authors: Proshin S.A.1, Golubkov V.S.1, Mayorov A.G.1, Malakhov V.V.1
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Affiliations:
- MEPhI National Nuclear Research University
- Issue: Vol 88, No 3 (2024)
- Pages: 491-494
- Section: Physics of Cosmic Rays
- URL: https://jdigitaldiagnostics.com/0367-6765/article/view/654739
- DOI: https://doi.org/10.31857/S0367676524030202
- EDN: https://elibrary.ru/QLBLFR
- ID: 654739
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Abstract
We simulated the galactic cosmic rays’ particles propagation in the Earth’s magnetosphere, given by the IGRF and CHAOS magnetic field models, while the second of them additionally has a lithospheric field component that is absent in the first model. The power spectra of the flux of galactic cosmic rays at a fixed height above the Earth’s surface are obtained and their difference is found for large orders of the multipole expansion, l > 7. For l > 20, the result can be explained by the contribution of the lithospheric component of the magnetic field in the CHAOS model compared to IGRF, and for l > 20, the difference in the accuracy of the description of the main field, since IGRF is limited to the 13th order of expansion.
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About the authors
S. A. Proshin
MEPhI National Nuclear Research University
Author for correspondence.
Email: sergey.proshin.97@mail.ru
Russian Federation, Moscow
V. S. Golubkov
MEPhI National Nuclear Research University
Email: sergey.proshin.97@mail.ru
Russian Federation, Moscow
A. G. Mayorov
MEPhI National Nuclear Research University
Email: sergey.proshin.97@mail.ru
Russian Federation, Moscow
V. V. Malakhov
MEPhI National Nuclear Research University
Email: sergey.proshin.97@mail.ru
Russian Federation, Moscow
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