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Electron Excitation Rates in the Solar Corona for non-Maxwellian Electron Distributions
Authors:Elena Dzif?áková
Institution:(1) Astronomical Institute, Faculty of Mathematics and Physics, Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia
Abstract:The influence of electron non-Maxwellian distributions (power and kappa-distribution) on the electron excitation rate in the solar corona is demonstrated. It is shown that the deviations in electron excitation rate are sufficient to affect intensities of spectral lines. As an example the diagnostics of a power-law distribution are demonstrated for a simplified calculation of the resonance lines of Fethinspxxiv, Fethinspxxv and Fethinspxxvi. The results can be used in diagnosing solar flare plasmas, where the deviations of the electron distribution from a Maxwellian distribution can be large.
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