Propagation of a monoenergetic electron beam in the solar corona

The dynamics of an electron beam is considered when the initial electron di stribution is localized in a space region. Analysis is conducted for the pa rameters of the beam and plasma that give radio emission. We demonstrate bo th numerically and analytically that beam electrons propagate as a beam-pla sma structure at large distances. The speed of the beam-plasma structure is equal to half of the maximum velocity of the electrons involved in this st ructure. The structure conserves the shape of the initial spatial distribut ion of electrons. A plateau with a constant maximum velocity is formed at t he electron distribution function in each spatial point.