Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..932..258l&link_type=abstract
TURBULENCE AND NONLINEAR PROCESSES IN ASTROPHYSICAL PLASMAS; 6th Annual International Astrophysics Conference. AIP Conference P
Astronomy and Astrophysics
Astrophysics
Mhd Waves, Plasma Waves, Turbulence, Solar Wind Plasma, Sources Of Solar Wind
Scientific paper
It has been realized that, instead of quasi-linear theory, nonlinear kinetic theory is needed to explain simulations of the transport of cosmic rays (suprathermal charged particles with energy E >> 1 keV) in MHD turbulence consisting of a dominant two-dimensional component and a minor slab component, a popular approximate model of MHD turbulence in the quiet solar wind. A BGK-Boltzmann transport theory approach to nonlinear diffusive cosmic ray transport in combined 2D and slab turbulence is used to clarify and extend a recent highly successful theory for coupled parallel and perpendicular diffusion, the so-called weakly nonlinear theory.
le Roux Jakobus A.
Webb Gary M.
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