Dust diffusion across a magnetic field due to random charge fluctuations

Details Dust diffusion across a magnetic field due to random charge fluctuations Dust diffusion across a magnetic field due to random charge fluctuations

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002phpl....9..619k&link_type=abstract

Physics of Plasmas, Volume 9, Issue 2, pp. 619-623 (2002).

Physics

5

Transport Properties, Fluctuation And Chaos Phenomena, Dusty Or Complex Plasmas, Plasma Crystals, Magnetohydrodynamics And Plasmas

Scientific paper

Dust particle diffusion across a magnetic field due to random charge fluctuations is reconsidered. Previously it was suggested that this mechanism could be one of the most effective processes which transport particles in the inner Jovian magnetosphere [G. E. Morfill, E. Grün, and T. V. Johnson, Planet Space Sci. 28, 1087 (1980)]. A general expression for the diffusion constant is derived using the stochastic equation of dust particle motion and known properties of random charge fluctuations. The dependence of the diffusion constant on magnetic-field strength and fluctuation amplitude is discussed. Numerical evaluation for conditions typical for the inner Jovian magnetosphere is presented.

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