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Cyclotron radio emission in plasma with steep temperature gradient

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Abstract

In the paper it is investigated how the non-Maxwellian electron velocity distribution function associated with steep temperature gradient affects the cyclotron radio emission at centimeter wavelengths. The results obtained were used to calculate the distribution of the brightness temperature across a sunspot. The presence of the large electron temperature gradient in the transition region may lead to a significant increase of the observed brightness temperature (up to several tens of percent) in comparison with the brightness temperature obtained by assumption of the Maxwellian distribution function.

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  1. Space Research Center of the Polish Academy of Sciences, 11, Wroclaw, Kopernika, Poland

    M. Siarkowski

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  1. M. Siarkowski
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Siarkowski, M. Cyclotron radio emission in plasma with steep temperature gradient. Sol Phys 94, 105–115 (1984). https://doi.org/10.1007/BF00154812

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  • DOI: https://doi.org/10.1007/BF00154812

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