Stabilization of the magnetosonic instability and destabilization of nonlinear electrostatic waves due to finite amplitude Alfvén waves in a two ion-beam plasma

2008 ◽  
Vol 15 (2) ◽  
pp. 022108 ◽  
Author(s):  
L. Gomberoff
Keyword(s):  
Ion Beam ◽  
Finite Amplitude ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Electrostatic Waves ◽  
Beam Plasma

Parametric instabilities of finite-amplitude, circularly polarized Alfvén waves in an anisotropic plasma

1993 ◽  
Vol 49 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Hiromitsu Hamabata
Keyword(s):  
Finite Amplitude ◽  
Alfven Waves ◽  
Mhd Equations ◽  
Alfvén Waves ◽  
Linear Perturbation ◽  
Plasma Parameters ◽  
Circularly Polarized ◽  
Pressure Anisotropy ◽  
Parametric Instabilities ◽  
Fifth Order

A class of parametric instabilities of finite-amplitude, circularly polarized Alfvén waves in a plasma with pressure anisotropy is studied by application of the CGL equations. A linear perturbation analysis is used to find the dispersion relation governing the instabilities, which is a fifth-order polynomial and is solved numerically. A large-amplitude, circularly polarized wave is unstable with respect to decay into three waves: one sound-like wave and two side-band Alfvén-like waves. It is found that, in addition to the decay instability, two new instabilities that are absent in the framework of the MHD equations can occur, depending on the plasma parameters.

scholarly journals Excitation of nonlinear Alfvén waves by an ion beam in a plasma: 1. Right-hand polarized waves

1997 ◽  
Vol 102 (A10) ◽  
pp. 22365-22376 ◽  
Author(s):  
V. L. Galinsky ◽  
V. I. Shevchenko ◽  
S. K. Ride ◽  
M. Baine
Keyword(s):  
Ion Beam ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Right Hand ◽  
Polarized Waves

Finite amplitude waves in ion-beam plasma systems

1994 ◽  
Vol 190 (5-6) ◽  
pp. 460-464 ◽  
Author(s):  
S.I. Popel ◽  
Klaus Elsässer
Keyword(s):  
Ion Beam ◽  
Finite Amplitude ◽  
Beam Plasma ◽  
Finite Amplitude Waves

Finite‐amplitude Alfvén waves in a dissipative inhomogeneous plasma

1995 ◽  
Vol 2 (5) ◽  
pp. 1453-1459 ◽  
Author(s):  
S. Rauf ◽  
J. A. Tataronis
Keyword(s):  
Inhomogeneous Plasma ◽  
Finite Amplitude ◽  
Alfven Waves ◽  
Alfvén Waves
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