THE PROPAGATION OF ELECTRON-FLUXES IN THE SOLAR CORONA

The problem of energetic electron flux propagation in the solar corona l plasma is solved with due regard for the influence of the oppositely directed neutralizing cold electron flux and the kinematic escape eff ect of the electrons with different velocities. It is shown that the f lux electrons are accelerated in the process of propagation, thus form ing a beam, whose velocity is constant on rather long time scales. Thr ee regimes can be realized in this case. In the first regime, plasma w aves do not have time to be excited because they escape rapidly from r esonance with the beam. In the second regime, waves are excited, but t he beam does not have time to relax. The third regime is quasi-linear relaxation. The generation of solar type III radio bursts in the secon d regime of electron flux propagation is considered.