Emission accompanying superluminal motion of light

We hope that we have succeeded in demonstrating the great scientific interest that attaches to superluminal motions of charges and to investigation of the radiation accompanying these motions. An extensive literature on superluminal motion is on hand even now. It deals, however, mainly with radiation in rectilinear motion, i.e., phenomena connected with the Vavilov-Cherenkov effect, the anomalous Doppler effect, ect. In the present note, on the other hand, principal attention is paid to the influence of the breakup of radiation of a single real source on the emission of several images visible by an immobile observer, which can take place for both uniform and nonuniform motion of the charges. From this viewpoint, new light is cast also on the anomalous Doppler effect. Breakup of one source into several images has been observed in all the considered examples.