Broadening of electron cyclotron maser emission lines in a nonuniform magnetic field

K. Y. Platonov, G. D. Fleishman

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The formation of cyclotron maser emission lines in a non-uniform (regular or random) magnetic field is studied. In the presence of sufficiently small inhomogeneity, the line shape can be described by a broadened Gaussian profile. In the case of stronger inhomogeneity, the initial Gaussian profile splits into two Gaussian components, which could be observationally perceived as "harmonics." A relation between the distribution of local magnetic trap sizes and the distribution of the spectral widths of solar radio spikes is derived. Possible applications of the results to the interpretation of solar radio spikes and related problems are discussed.

Original languageEnglish (US)
Pages (from-to)203-211
Number of pages9
JournalAstronomy Reports
Volume45
Issue number3
DOIs
StatePublished - Mar 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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