%0 Journal Article
%T The telegraph approximation for focused cosmic-ray transport in the presence of boundaries
%A Yuri E. Litvinenko
%A Frederic Effenberger
%A Reinhard Schlickeiser
%J Physics
%D 2015
%I arXiv
%X 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.
%U http://arxiv.org/abs/1505.05134v1