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arXiv · 1505.05134

The telegraph approximation for focused cosmic-ray transport in the presence of boundaries

Yuri E. Litvinenko·Frederic Effenberger·Reinhard Schlickeiser
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Abstract

Diffusive cosmic-ray transport in nonuniform large-scale magnetic fields in the presence of boundaries is considered. Reflecting and absorbing boundary conditions are derived for a modified telegraph equation with a convective term. Analytical and numerical solutions of illustrative boundary problems are presented. The applicability and accuracy of the telegraph approximation for focused cosmic-ray transport in the presence of boundaries are discussed, and potential applications to modeling cosmic-ray transport are noted.

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Yuri E. Litvinenko, Frederic Effenberger, Reinhard Schlickeiser. 2015-05-19. The telegraph approximation for focused cosmic-ray transport in the presence of boundaries. https://arxiv.org/abs/1505.05134

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