Abstract
In real intensive cosmic sources it is necessary to take into account the Čerenkov reabsorption which restricts the brightness temperature of Čerenkov emission by energies of emitted relativistic electrons. As Čerenkov optical depth is given by τc~N/E, the brightness temperature of emission on frequencies near gyrofrequency is determined by electron energyE r in which τc(E r)=1. It is shown that most of the synchrotron sources (quasars, pulsars) must be powerful sources of Čerenkov emission. In these sources the high density of low frequency Čerenkov emission can give rise to many parametric effects.
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Charugin, V.M. Cosmic Čerenkov emission. Astrophys Space Sci 37, 449–454 (1975). https://doi.org/10.1007/BF00640364
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DOI: https://doi.org/10.1007/BF00640364