A phenomenon analogous to this one that results in charged secondary showers is the Aksaryan effect.
The frequency distribution of energy from this process is given in cgs units by particle charge squared over speed of light squared times the pathlength integral of relative permeability times quantity one minus the squared ratio of local EM phase speed to particle speed. A phenomenon analogous to this one that results in charged secondary showers is the Aksaryan effect. This effect's characteristic angle is the arcsecant of the ratio of the particle speed to phase speed of light and its energy distribution is the aforementioned Frank-Tamm formula; the characteristic angle is only real when the speed ratio is at least unity because this effect only occurs when charged particles moves faster than the phase speed of light. For ten points, name this electrodynamic analogue of Mach wave emission by supersonic objects: a form of radiation that gives nuclear reactors a characteristic blue glow.
The frequency distribution of energy from this process is given in cgs units by particle charge squared over speed of light squared times the pathlength integral of relative permeability times quantity one minus the squared ratio of local EM phase speed to particle speed.
{Čerenkov} radiation (or {Čerenkov} emission or the {Čerenkov} effect)