Abstract

We present the results of two dimensional PIC (Particle-in-Cell) simulations of plasma cloud collisions. We investigate two different types of the plasma configuration: in the first one the initial configuration is assumed to have the slab form and the second configuration has a form of the cylindrical. In both cases we found that the counterstreaming motion of the plasmas is unstable with respect to the electromagnetic mode excitation with the developing of the hollow structures in the electron density distribution, the formation of the electric current filaments and the merging of the filaments and quasistatic magnetic field generation.

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