Influence of the Return Current on the EUV and X-Ray Flare Line Emissions |
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Authors: | Elena Dzif?áková Marian Karlický |
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Institution: | (1) Astronomical Institute of the Academy of Sciences of the Czech Republic, 251 65 Ondrejov, Czech Republic;(2) Faculty of Mathematics Physics and Informatics, Comenius University, Mlynská dolina, 842 48 Bratislava, Slovakia |
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Abstract: | Electron beams accelerated during solar flares carry electric currents which should be neutralized by so-called return currents.
Both the electron beam and return current modify the electron distribution function in the solar transition region and low
corona. Thus, they influence the intensities of the spectral lines formed in these layers. Synthetic spectra for the solar
flare atmosphere are computed from model conditions and the possibilities of diagnostics of the return current from the EUV
and X-ray line spectra are discussed. |
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Keywords: | Electron beam Return current Non-thermal distributions EUV and X-ray emission |
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