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Transport in Astrophysics: VII. Solar Modulation of the Cosmic Rays
Department of Physics, University of Turin, Turin, Italy
- 1 Department of Physics, University of Turin, Turin, Italy
International Journal of Astronomy and Astrophysics·Volume 14 (2024)·Pages 245–258·Published 17 October 2024·DOI10.4236/ijaa.2024.144016
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Abstract
Two existing solutions for the diffusion of cosmic rays (CRs) are analyzed. The first one is a well-known solution in 3D over an infinite spatial domain and the second one is a 1D solution with an exponential decay initial profile over an infinite spatial domain. For each solution, the temporal evolution of the number of particles at a fixed distance has been analyzed. The anticorrelation between the flux of CRs and the magnetic field at one astronomical unit has been explained by adopting a careful choice of the astrophysical parameters involved.
KeywordsCosmic RaysParticle DiffusionRandom Walks
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