Abstract
The radiation of a charge rotating in a circle with the constant velocity (in the external magnetic field) in the isotropic plasma with random inhomogeneities of the electron density has been considered. A general expression is obtained for the radiation intensity at thenth harmonic, which is a generalization of the known Shott formula. In the ultra-relativistic case the conditions are clarified under which the inhomogeneity effect on the form of the spectrum of radiation from a particle is essential. An asymptotic formula is derived for the spectral intensity in the region of sufficiently low frequencies. The mechanism of transient radiation in this case is shown to prevail over the synchrotron one.
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Tamoykin, V.V. The spectrum of synchrotron-transient radiation of a charged particle in plasma with random inhomogeneities. Astrophys Space Sci 53, 3–11 (1978). https://doi.org/10.1007/BF00645899
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DOI: https://doi.org/10.1007/BF00645899