Abstract
We discuss the connection of the formation and properties of solar atmosphere transition region characterized by a steep electron temperature gradient with electrostatic turbulence, which provides a high effective electron collision frequency and a low thermal conductivity of the medium. A simple dependence of the noise electric field in the transition region on the effective collision frequency has been derived. Based on known experimental models of the solar atmosphere, we have estimated the height dependence of the thermal conductivity and the strength of the noise electric fields for a tube with a relatively weak magnetic field passing from the chromosphere into the corona.
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Original Russian Text © P.A. Bespalov, O.N. Savina, 2015, published in Pis’ma v Astronomicheskiĭ Zhurnal, 2015, Vol. 41, No. 10, pp. 651–656.
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Bespalov, P.A., Savina, O.N. Electrostatic turbulence in electron temperature jumps of the solar atmosphere. Astron. Lett. 41, 601–605 (2015). https://doi.org/10.1134/S1063773715100011
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DOI: https://doi.org/10.1134/S1063773715100011