Nonlinear ion acoustic wave in a pair-ion plasma in a uniform weak magnetic field

2015 ◽  
Vol 90 (4) ◽  
pp. 045604 ◽  
Author(s):  
Biplab Maity ◽  
Samiran Ghosh ◽  
R Bharuthram
Keyword(s):  
Magnetic Field ◽  
Acoustic Wave ◽  
Weak Magnetic Field ◽  
Ion Acoustic Wave ◽  
Ion Plasma ◽  
Ion Acoustic

Decay Instability of the Ion Acoustic Wave

1975 ◽  
Vol 53 (6) ◽  
pp. 657-665
Author(s):  
S. R. Seshadri
Keyword(s):  
Acoustic Wave ◽  
Acoustic Waves ◽  
Pump Wave ◽  
Plasma Oscillation ◽  
Electron Plasma ◽  
Electromagnetic Mode ◽  
Ion Acoustic Wave ◽  
Plasma Mode ◽  
Ion Plasma ◽  
Ion Acoustic

The parametric excitation of the longitudinal, plasma mode and the transverse, electromagnetic mode in a warm, uniform plasma is investigated for the case in which the pump wave is another electromagnetic mode. The three interacting waves are assumed to propagate in the same direction. The longitudinal mode has two branches, namely, the electron plasma mode and the ion plasma mode. The parametric coupling of the longitudinal and the transverse waves in the presence of the pump wave leads to instabilities of the interacting waves. Illustrative numerical results are presented for the parametric instabilities of the electron plasma oscillation which is a part of the electron plasma mode and those of the ion acoustic waves and the ion plasma oscillations which are parts of the ion plasma mode. The ion acoustic wave is efficiently excited when the pump and the idler wave frequencies are approximately equal to one and a half times the electron plasma frequency.

Effect of magnetic field on propagation of nonlinear ion-acoustic wave

1976 ◽  
Vol 19 (5) ◽  
pp. 762 ◽  
Author(s):  
S. G. Tagare ◽  
A. S. Sharma
Keyword(s):  
Magnetic Field ◽  
Acoustic Wave ◽  
Ion Acoustic Wave ◽  
Ion Acoustic

Maximization in the damping rate of the ion acoustic wave in a two-ion plasma

1975 ◽  
Vol 18 (6) ◽  
pp. 651 ◽  
Author(s):  
Masaharu Nakamura ◽  
Masataka Ito ◽  
Yoshiharu Nakamura ◽  
Tomizo Itoh
Keyword(s):  
Acoustic Wave ◽  
Ion Acoustic Wave ◽  
Ion Plasma ◽  
Ion Acoustic ◽  
Damping Rate

Oblique Ion Acoustic Wave Instabilities in a Multi-Ion Plasma and3He-Rich Events

1993 ◽  
Vol 62 (8) ◽  
pp. 2545-2548 ◽  
Author(s):  
Tian Xi Zhang ◽  
Mieko Toida ◽  
Yukiharu Ohsawa
Keyword(s):  
Acoustic Wave ◽  
Ion Acoustic Wave ◽  
Ion Plasma ◽  
Ion Acoustic ◽  
Wave Instabilities

Excitation of an ion-acoustic wave by two whistlers in a collisionless magnetoplasma

1981 ◽  
Vol 25 (2) ◽  
pp. 255-265 ◽  
Author(s):  
M. S. Sodha ◽  
Tarsem Singh ◽  
D. P. Singh ◽  
R. P. Sharma
Keyword(s):  
Magnetic Field ◽  
Acoustic Wave ◽  
Static Magnetic Field ◽  
Ponderomotive Force ◽  
Wave Power ◽  
Ion Acoustic Wave ◽  
Ion Density ◽  
Ion Acoustic

This paper presents an investigation of the excitation of an ion-acoustic wave in a collisionless hot magnetoplasma by two whistlers. On account of the interaction of the two whistlers, of frequencies ω1 and ω2, ponderomotive force at frequency △ ω(= ω1 – ω2) leads to the generation of an ion-acoustic wave. When the two whistlers have initially Gaussian intensity distributions, a d.c. component of the ponderomotive force leads to the redistribution of the background electron/ion density, and cross-focusing of the whistlers occurs. The power of the generated ion-acoustic wave, being dependent on the background ion density and powers of the whistlers, is further modified. The ion-acoustic wave power also changes drastically with the strength of the static magnetic field.

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