Spontaneous Excitation of the Long-Wave Ion-Cyclotron and Ion-Acoustic Oscillations in Fully Ionized Plasmas

1972 ◽  
Vol 15 (9) ◽  
pp. 1630 ◽  
Author(s):  
B. Milić
Keyword(s):  
Acoustic Oscillations ◽  
Long Wave ◽  
Ionized Plasmas ◽  
Ion Acoustic ◽  
Ion Cyclotron

Coupling of electrostatic ion cyclotron and ion acoustic waves in the solar wind

2016 ◽  
Vol 23 (8) ◽  
pp. 082901 ◽  
Author(s):  
T. Sreeraj ◽  
S. V. Singh ◽  
G. S. Lakhina
Keyword(s):  
Solar Wind ◽  
Acoustic Waves ◽  
Ion Acoustic Waves ◽  
Ion Acoustic ◽  
Ion Cyclotron

scholarly journals Spiky parallel electrostatic ion cyclotron and ion acoustic waves

2002 ◽  
Vol 9 (1) ◽  
pp. 25-29 ◽  
Author(s):  
R. V. Reddy ◽  
G. S. Lakhina ◽  
N. Singh ◽  
R. Bharuthram
Keyword(s):  
Electric Fields ◽  
Acoustic Waves ◽  
Rest Frame ◽  
Wave Form ◽  
Ion Acoustic Waves ◽  
Parallel Propagation ◽  
Wave Phase Velocity ◽  
Ion Acoustic ◽  
Ion Cyclotron ◽  
Field Aligned Current

Abstract. One of the interesting observations from the FAST satellite is the detection of strong spiky waveforms in the parallel electric field in association with ion cyclotron oscillations in the perpendicular electric fields. We report here an analytical model of the coupled nonlinear ion cyclotron and ion-acoustic waves, which could explain the observations. Using the fluid equations for the plasma consisting of warm electrons and cold ions, a nonlinear wave equation is derived in the rest frame of the propagating wave for any direction of propagation oblique to the ambient magnetic field. The equilibrium bulk flow of ions is also included in the model to mimic the field-aligned current. Depending on the wave Mach number M defined by M = V/Cs with V and Cs being the wave phase velocity and ion-acoustic speed, respectively, we find a range of solutions varying from a sinusoidal wave form for small amplitudes and low M to sawtooth and highly spiky waveforms for nearly parallel propagation. The results from the model are compared with the satellite observations.

scholarly journals Numerical simulation of the nonlinear fractional regularized long-wave model arising in ion acoustic plasma waves

2018 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Omid Nikan ◽  
◽  
Seyedeh Mahboubeh Molavi-Arabshai ◽  
Hossein Jafari ◽  
◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Wave Model ◽  
Plasma Waves ◽  
Long Wave ◽  
Ion Acoustic
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