Effect of Landau damping on ion-acoustic solitary waves in a magnetized nonthermal plasma with warm ions
- 1 February 2002
- journal article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 9 (2), 465-473
- https://doi.org/10.1063/1.1427022
Abstract
An evolution equation describing weakly nonlinear and weakly dispersive ion-acoustic waves in magnetized nonthermal plasma with warm ions, including the effect of Landau damping, has been derived. It is found that the coefficient of the nonlinear term of this equation vanishes along a particular curve in βσ-plane, where β is a parameter that determines the proportion of fast electrons and σ is the ratio of electron to ion temperature. In this case, the modified evolution equation has also been derived. The solitary wave solutions of these equations propagating obliquely to the external magnetic field have been obtained by the multiple time scale method. It has been found that in either case the amplitude of the solitary waves slowly decreases with time.Keywords
This publication has 9 references indexed in Scilit:
- Stability of Ion-Acoustic Double Layers in a Magnetized Plasma Consisting of Warm Ions and Nonthermal ElectronsPhysica Scripta, 2001
- Ion-Acoustic Double Layers and Solitary Waves in a Magnetized Plasma Consisting of Warm Ions and Non-Thermal ElectronsPhysica Scripta, 2000
- Stability of solitary waves in a magnetized non-thermal plasma with warm ionsJournal of Plasma Physics, 1999
- Stability of solitary waves in a magnetized non-thermal plasmaJournal of Plasma Physics, 1996
- Ion-acoustic solitons in a magnetized plasma with nonthermal electronsPhysica Scripta, 1996
- Electrostatic solitary structures in non‐thermal plasmasGeophysical Research Letters, 1995
- Freja multiprobe observations of electrostatic solitary structuresGeophysical Research Letters, 1994
- Ion-acoustic solitons in magnetized multi-component plasmas including negative ionsJournal of Plasma Physics, 1989
- Nonlinear Theory of Ion Acoustic Waves with Landau DampingPhysics of Fluids, 1969