Electroacoustic radiation from a point source in a moving magnetoactive plasma

The three‐dimensional problem of the wave propagation from a point source in a moving magnetoactive plasma is considered for the case of monochromatic waves. The magnetic Reynolds number is assumed to be small, so that the potential approximation for the electric field perturbation can be accepted. The cases of subsonic and supersonic main flows are considered. The method of integral transformations is used for the solution of the problem. The high‐frequency asymptotic expansion of the solution is obtained and analyzed. For a supersonic flow, the existence of the electric and gas‐dynamic perturbations outside the classic Mach cone is established, and the properties of these perturbations are examined.