Speed and shape of solitary waves in relativistic warm plasma

Abstract

Large-amplitude solitary waves are investigated in a relativistic plasma with finite ion-temperature. The mass of electron is also considered. The Sagdeev's pseudopotential is determined in terms of u, the ion speed. It is found that there exists a critical value of u0, the value of u at which (u~) ~ ----0, beyond which the solitary waves cease to exist. The critical value also depends on the parameters like v, the soliton velocity; #, the electronion mass ratio or a, the temperature ratio of ion to electron. This result reproduces our previous result [Czech.