Abstract
The unusual event of November 17, 1991 07:04 UT, observed at 2.5 and 2.85 GHz, is analysed. The event reveals the sophisticated superfine time structure including sudden reductions and quasi-periodic pulsations. We shown that the sudden reductions (≈ 30–100 ms) can be driven by upward injected ≳ 100 keV electron beams filling the loss-cone of the coronal magnetic trap. The nonlinear oscillations of Langmuir waves provide the best fit for the pulsation observed. A reduced steady-state level of the pulsation phase is connected with quasi-continuous injection of electrons. The physical parameters of the radio source are found for the event.
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© 1994 Springer Science+Business Media Dordrecht
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Fleishman, G.D., Stepanov, A.V., Yurovsky, Y.F. (1994). Microwave Burst of November 17, 1991: Evidence of Fragmented Particle Injection into a Coronal Loop. In: Van den Oord, G.H.J. (eds) Fragmented Energy Release in Sun and Stars. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1014-3_28
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DOI: https://doi.org/10.1007/978-94-011-1014-3_28
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