Abstract
Radio spectra of some eruptive flares are described. Most of them do not conform to the classical spectrum schema. Both the type I burst chains associated with the filament activation phase of the May 16, 1981 flare, and the slow negative drift of the group of type III and U bursts in the July 12, 1982 and June 15,1991 flares illustrate the upwards expansion of complete magnetic structures. In some eruptive flares, e.g. April 24, 1985, reverse drift bursts are observed prior to the upwards expansion. In addition, narrowband dm-spikes and a variety of positively drifting features are frequently observed. These are believed to be radio signatures of localized reconnections and of the spreading of flare dissipative processes. Results of numerical simulations supporting these ideas are presented.
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© 1992 Springer-Verlag
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Karlicky, M. (1992). Radio emission of eruptive flares. In: Švestka, Z., Jackson, B.V., Machado, M.E. (eds) Eruptive Solar Flares. Lecture Notes in Physics, vol 399. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-55246-4_94
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DOI: https://doi.org/10.1007/3-540-55246-4_94
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