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Stimulated Cerenkov-radiation processes in dusty AGN

机译：在尘土飞扬的aGN中受刺激的切伦科夫辐射过程

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An electron moving with a superluminal velocity in a dielectric medium gives rise to spontaneous Cerenkov radiation. If, instead of a single electron, a high density superluminal electron beam is made to pass through a dielectric, the spontaneously generated radiation will grow exponential with distance and is known as stimulated Cerenkov-Compton radiation. If, in addition, an incident electromagnetic field interacts with a strong superluminal or subluminal electron beam, a frequency up-converted stimulated scattered radiation is produced, which by analogy to a similar process in vacuum with subluminal electron beams, is known as Cerenkov-Raman radiation. We explore and point out the role of these processes in the dust environs of Active Galactic Nuclei (AGN). Since, the refractive index of the dust matter is a key factor in these processes, their inclusion links the properties of the dust grains with the characteristics of the non-thermal continuum especially in the infrared range, which, the observations show to be particularly bumpy and therefore requires additional contributions over the thermal continuum.

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