Cosmic ray diffusion: Detailed investigation of a recent model

Lerche, Ian; Tautz, R. C.
August 2011
Physics of Plasmas;Aug2011, Vol. 18 Issue 8, p082305
Academic Journal
A recently proposed model [A. Shalchi, Astrophys. J. 720, L127 (2010)] of perpendicular cosmic ray scattering is investigated in detail, with special emphasis to the relevant diffusion coefficients. Solution of a pair of critical equations, as well as a fundamental integral needed to describe the particle transport, are represented via a mathematically correct expansion procedure, thus modifying the previously available approximations. It is hoped that these significant improvements will aid in allowing a clearer understanding of precisely what the model is capable of evaluating.


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