On very fast frequence drifting solar radiobursts with short time of decay

An analysis of the radio echo probing of the Sun data reveals the existence of the regions of the rapid acceleration and intense heating of the solar wind (RAIH) 2.4. Investigations are made to find out what peculiarities are acquired by the bursts of type 3 excited in RAIH. Numerical solution of the equations governing the evolution of the Langmuir waves spectrum excited by the electron beam enables us to demonstrate that along with a very fast frequency drift these bursts are distinguished by the very short time of decay determined by the Landau damping. The anticipation is made that the pulsating structures or groups of spikes, especially those connected with bursts of type 3 appearing on the lower frequencies 18.21, are excited in RAIH