On the modulation of ion-acoustic solitary waves in a cylindrical warm plasma near critical density |
| |
Authors: | A. Roy Chowdhury K. Roy Chowdhury S. N. Paul |
| |
Affiliation: | (1) High Energy Physics Division, Department of Physics, Jadavpur University, 700 032 Calcutta, India |
| |
Abstract: | Summary We have derived a modified cylindrical K-dV (MCK-dV) equation for an ion-acoustic wave in a warm plasma with two-temperature electrons, in a cylindrical geometry, near the critical density where the nonlinearity of the usual CK-dV vanishes. The solitary-wave solution of MCK-dV is then discussed analytically using the concept of adiabatic invariants and the basic theorem due to Lax, instead of any numerical evaluation. This modulated form of the solitary wave is then discussed graphically as regards its variation with respect to the change in concentration of law- and high-temperature electrons. |
| |
Keywords: | Waves oscillations and instabilities in plasma |
本文献已被 SpringerLink 等数据库收录! |