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Skinning process stability of the magnetic field in the solar active regions

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Abstract

Skinning process stability of the magnetic field in homogeneous plasma is studied. A set of magnetohydrodynamic equations is used. Dependence of electrical conductivity on the plasma parameters and radiation intensity in grey-body approximation are taken into account. The investigation is carried out on the model problems in linear approximation and by means of numerical solution of MHD equations. Threshold of stability and critical gradient of magnetic field in skin-layer are obtained. The model of the phenomenon proposed in the paper indicates on overheating instability of plasma with electric current in large gradient magnetic field zones as a possible trigger mechanism of solar flare origin.

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Authors and Affiliations

  1. State University of Krasnoyarsk, 660075, Krasnoyarsk, U.S.S.R.

    V. S. Sokolov

  2. Institute for Pure & Applied Mechanics, 630090, Novosibirsk, U.S.S.R.

    S. S. Katsnelson, A. G. Kosovichev & V. S. Slavin

Authors
  1. V. S. Sokolov
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  2. S. S. Katsnelson
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  3. A. G. Kosovichev
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  4. V. S. Slavin
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Sokolov, V.S., Katsnelson, S.S., Kosovichev, A.G. et al. Skinning process stability of the magnetic field in the solar active regions. Sol Phys 51, 293–306 (1977). https://doi.org/10.1007/BF00216367

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  • DOI: https://doi.org/10.1007/BF00216367

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