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Coherent Synchrotron Deceleration and the Emission of Type II and Type III Solar Radio Bursts

Abstract

TYPE II and type III solar radio bursts are spectacular radio emissions which accompany the flash phase of a solar flare. Appleton and Hey1 discovered these phenomena and Payne-Scott, Yabsly and Bolton2 recognized the respective slow and fast frequency drift which these emissions show. Wild3 and his colleagues, observing with a swept frequency spectrometer, found second harmonic components4 and further verified the frequency drift. The widely accepted explanation of type III bursts, that they are related to electrostatic plasma oscillations which are partially converted into transverse electromagnetic radiation by non-linear phenomena, was first put forward by Ginzburg and Zheleznykov5.

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References

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KUCKES, A., SUDAN, R. Coherent Synchrotron Deceleration and the Emission of Type II and Type III Solar Radio Bursts. Nature 223, 1048–1049 (1969). https://doi.org/10.1038/2231048a0

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