Get access
Radio Science

Propagation of ion-acoustic solitons in a lossy plasma with density gradients


  • Tsuneo Yagi,

  • Akira Noguchi


It is shown that a certain type of nonuniform media with a relaxation effect can still support exact multisoliton. Through the original Gardner-Morikawa transformation the propagation of a solitary ion-acoustic wave in a plasma with both ion-neutral collisions and density gradients is shown in the Korteweg-de Vries equation with loss and nommiformity terms. If there exists a certain balancing between them, the corresponding solutions are shown to express solitons damping their amplitude in time, without emitting any oscillatory tails.

Get access to the full text of this article