Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsh44a..07d&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SH44A-07
Physics
7807 Charged Particle Motion And Acceleration, 7863 Turbulence, 2149 Mhd Waves And Turbulence
Scientific paper
We consider the motion of test particles on short time scales in fields obtained from direct numerical simulations of three-dimensional MHD turbulence with a strong background magnetic field. We observe different properties of the velocity distribution of particles, whether electrons or protons are considered, due to the different ratio of particles' gyroradii to the MHD dissipative scales. The anisotropy of the distributions is suggestive of some of the observed properties of solar energetic particles. Although the test particle approach is incomplete, we speculate that these results could be useful on understanding possible dissipation mechanisms for models of coronal heating based on formation of current sheets and quasi-2D turbulence.
Dmitruk Pablo
Matthaeus William H.
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