The paper is devoted to the theory of type II solar radio bursts caused by collisionless shock waves propagating in the coronal plasma. The model developed is based on the theory of collisionless shock waves, which predicts ...

An energetic proton beam passing through a stationary ionized medium, excites ion-acoustic turbulence. The ion-acoustic instability saturates due to the non-linear indirect wave-particle scattering. The electric field ...

We have recently reported the polarization changes of the intense electromagnetic radiation, in active galactic nuclei and pulsars, due to stimulated Raman scattering. In this paper, we show that the incident and the ...