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Detailed Reference Information |
Qin, G., Matthaeus, W.H. and Bieber, J.W. (2002). Subdiffusive transport of charged particles perpendicular to the large scale magnetic field. Geophysical Research Letters 29: doi: 10.1029/2001GL014035. issn: 0094-8276. |
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Transport of charged particles across the mean magnetic field due to broad band, powerlaw-distributed magnetic fluctuations is examined by direct computation of a large number of charged test particle trajectories. Fluctuations consist of a one dimensional slab spectrum with an additional 0.01 percent level of two dimensional fluctuations; the net field has no ignorable directions. We find that, at long times (t), the mean square displacements subdiffusively scale as ~t1/2. This confirms that perpendicular diffusion is suppressed when turbulence lacks strong three dimensional structure, in agreement with theories of Urch and of K¿ta and Jokipii. |
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Abstract |
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Keywords
Space Plasma Physics, Transport processes, Interplanetary Physics, Cosmic rays, Interplanetary Physics, Energetic particles, heliospheric, Solar Physics, Astrophysics, and Astronomy, Energetic particles |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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