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On the influence of hall currents on the magnetic field penetration through tangential discontinuities into unmagnetized plasma under physical conditions of cosmic space

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Abstract

Under physical conditions of cosmic space, the cyclotron frequency of electrons is almost always much greater than the frequency of their collisions, with the plasma conductivity being highly anisotropic relative to the magnetic field direction. The conditions for magnetic field freezing in the plasma are analyzed in this case. The penetration of the interplanetary magnetic field into the coma of Comet Halley and the formation of the Earth’s magnetospheric mantle are used as examples to show that the penetration depth of an unmagnetized plasma through tangential discontinuities into a plasma with a magnetic field is determined not by the dissipative process of magnetic field diffusion but by a non-dissipative process associated with the Hall dispersion.

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Authors and Affiliations

  1. Ishlinskii Institute for Problems in Mechanics, Russian Academy of Sciences, pr. Vernadskogo 101, Moscow, 117526, Russia

    V. B. Baranov

  2. Moscow State University, Moscow, 119992, Russia

    V. B. Baranov

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  1. V. B. Baranov
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Correspondence to V. B. Baranov.

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Original Russian Text © V.B. Baranov, 2013, published in Pis’ma v Astronomicheskiĭ Zhurnal, 2013, Vol. 39, No. 11, pp. 878–883.

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Baranov, V.B. On the influence of hall currents on the magnetic field penetration through tangential discontinuities into unmagnetized plasma under physical conditions of cosmic space. Astron. Lett. 39, 792–796 (2013). https://doi.org/10.1134/S1063773713100010

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  • DOI: https://doi.org/10.1134/S1063773713100010

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