DIFFUSIONAL MECHANISM OF EMISSION FROM A CHARGED PARTICLE IN DUST PARTICLES

The emission from a charged particle moving in a medium containing randomly distributed dust particles is considered. It is shown that in certain cases, the diffusional mechanism of emission is the principal one in the x-ray range. Possible astrophysical applications of this mechanism are considered. Spectral indices in the x-ray range are calculated, in particular. The calculated spectral indices agree well with those of active galactic nuclei.