Diffusion of energetic particles in turbulent MHD plasmas

Details Diffusion of energetic particles in turbulent MHD plasmas Diffusion of energetic particles in turbulent MHD plasmas

2012-03-05

arxiv.org/abs/1203.0933v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Accepted for publication in ApJ

Scientific paper

In this paper we investigate the transport of energetic particles in turbulent plasmas. A numerical approach is used to simulate the effect of the background plasma on the motion of energetic protons. The background plasma is in a dynamically turbulent state found from numerical MHD simulations, where we use parameters typical for the heliosphere. The implications for the transport parameters (i.e. pitch-angle diffusion coefficients and mean free path) are calculated and deviations from the quasi-linear theory are discussed.

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