Compound perpendicular transport of charged particles with drift, advection, wave propagation effects, and an arbitrary turbulence spectrum

Details Compound perpendicular transport of charged particles with drift, advection, wave propagation effects, and an arbitrary turbulence spectrum Compound perpendicular transport of charged particles with drift, advection, wave propagation effects, and an arbitrary turbulence spectrum

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.321..197s&link_type=abstract

Astrophysics and Space Science, Volume 321, Issue 3-4, pp. 197-207

Astronomy and Astrophysics

Astrophysics

3

Cosmic Rays, Field Line Random Walk, Perpendicular Diffusion, Compound Diffusion

Scientific paper

We investigate compound diffusion of charged particles by employing a Chapman-Kolmogorov approach. The particle mean square deviation across the mean field is calculated for early and late times. By taking into account particle drift, advection, wave propagation effects, and an arbitrary turbulence spectrum at large turbulence scales, we achieve a more realistic description of compound diffusion in comparison to previous articles. Due to drift, advection, and wave propagation effects we find a diffusive behavior of perpendicular scattering in the case of diffusive field line wandering. The different effects leading to perpendicular diffusion are compared among each other.

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