An evaluation of the possibility of studying flare plasma turbulence using the satellites of Hei line forbidden components |
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| Authors: | N M Firstova |
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| Institution: | 1. Siberian Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Siberian Branch, USSR Academy of Sciences, P.O. Box 4, 33, Irkutsk, U.S.S.R.
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| Abstract: | Using the Baranger-Mozer method, we explore the possibility of diagnosing the flare plasma of forbidden Hei lines, that permits the determination of the plasma oscillation frequency and noise level. Examination of the Hei lines observed in solar flare has led us to conclude that: - the appearance of satellites of forbidden components in the flares spectrum, due to turbulent electric fields, is the most probable for Hei 3819.606 Å lines;
- the Baranger-Mozer method is more sensitive to the high-frequency component of turbulent fields than to the low-frequency ones;
- the upper limit of the turbulent oscillation level in flares is evaluated.
In the spectrum of the solar flare of 26 September, 1963 we detected satellites of the forbidden component of the 3820 Å line and used its relative intensity to derive the level of low-frequency oscillations (～1.5 kVcm-1). |
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