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On the harmonic structure of solar radio spikes

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Abstract

This paper analyzes the frequency structure of the bands of electron-cyclotron maser instability. The calculations show that each term of the series describing the growth rate provides a double-peak structure, if we accept a nonthermal electron distribution with a ‘two-side’ loss-cone. The ratio of central frequencies is found to be non-integer in general case. We conclude that the harmonic structure of solar radio spikes observed in a number of events can be imitated by electron-cyclotron maser emission of mildly relativistic electrons with a power-law momentum distribution.

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Authors and Affiliations

  1. Ioffe Institute for Physics and Technology, 194024, St. Petersburg, Russia

    G. D. Fleishman & S. G. Yastrebov

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  1. G. D. Fleishman
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  2. S. G. Yastrebov
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Fleishman, G.D., Yastrebov, S.G. On the harmonic structure of solar radio spikes. Sol Phys 154, 361–369 (1994). https://doi.org/10.1007/BF00681104

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  • DOI: https://doi.org/10.1007/BF00681104

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