New aspects of the Vavilov-Cherenkov radiation

The effects arising from accelerated and decelerated motion of the charged point particle inside the medium are studied. It is shown explicitly that in addition to the Bremsstrahlung and Cherenkov shock wave, the previously unknown electromagnetic shock wave arises when the charge velocity coincides with the medium light velocity. This shock wave has the same singularity as the Cherenkov one and, therefore, it is more singular than the Bremsstrahlung shock wave. The space-time regions where these shock waves exist and conditions under which they appear are determined