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Dynamics of electron beams in the inhomogeneous solar corona plasma

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Abstract

Dynamics of a spatially-limited electron beam in the inhomogeneous solar corona plasma is considered in the framework of weak turbulence theory when the temperature of the beam significantly exceeds that of surrounding plasma. The numerical solution of kinetic equations manifests that generally the beam accompanied by Langmuir waves propagates as a beam-plasma structure with a decreasing velocity. Unlike the uniform plasma case the structure propagates with the energy losses in the form of Langmuir waves. The results obtained are compared with the results of observations of type III bursts. It is shown that the deceleration of type III sources can be explained by corona inhomogeneity. The frequency drift rates of the type III sources are found to be in good agreement with the numerical results of beam dynamics.

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  1. Institute of Theoretical Astrophysics, P.B. 1029, Blindern, 0315, Oslo, Norway

    Eduard P. Kontar

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Kontar, E.P. Dynamics of electron beams in the inhomogeneous solar corona plasma. Solar Physics 202, 131–149 (2001). https://doi.org/10.1023/A:1011894830942

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