Numerical Propagation of Cosmic Rays in the Galaxy

2007/05/22 by Daniel De Marco, De Marco, Daniel, Pasquale Blasi +3
Physics and Astronomy · #Astrophysics (astro-ph) #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Solar and Space Plasma Dynamics

paper · pdf · doi:10.48550/arxiv.0705.3184

openalex publication_date 2007/05/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a Monte-Carlo (MC) calculation of the propagation of cosmic ray protons in the Galaxy for energies above 1 PeV. We discuss the relative strengths of competing effects such as parallel/perpendicular diffusion and drifts in toy models of the Galaxy. We compare our estimates with the results of the MC calculation for the toy models and then we apply the MC calculation to a few more realistic models of the Galactic magnetic field. We study the containment times in different models of the magnetic field in order to understand which one may be consistent with the low energy data.

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