Excitation of ion-acoustic perturbations by incoherent kinetic Alfvén waves in plasmas

2007 ◽  
Vol 14 (12) ◽  
pp. 122304 ◽  
Author(s):  
J. T. Mendonça ◽  
P. K. Shukla
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Ion Acoustic ◽  
Kinetic Alfvén Waves

On ion acoustic turbulence and the nonlinear evolution of kinetic Alfvén waves in aurora

1994 ◽  
Vol 21 (17) ◽  
pp. 1831-1834 ◽  
Author(s):  
J.-E. Wahlund ◽  
P. Louarn ◽  
T. Chust ◽  
H. de Feraudy ◽  
A. Roux ◽  
...  
Keyword(s):  
Nonlinear Evolution ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Ion Acoustic ◽  
Kinetic Alfvén Waves

Three-dimensional stability of solitary kinetic Alfvé waves and ion-acoustic waves

1994 ◽  
Vol 51 (1) ◽  
pp. 95-111 ◽  
Author(s):  
G. Ghosh ◽  
K. P. Das
Keyword(s):  
Dimensional Stability ◽  
Acoustic Waves ◽  
Three Dimensional ◽  
Perturbation Expansion ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Ion Acoustic Waves ◽  
Linear Dispersion ◽  
Ion Acoustic ◽  
Kinetic Alfvén Waves

Starting from a set of equations that lead to a linear dispersion relation coupling kinetic Alfvén waves and ion-acoustic waves, three-dimensional KdV equations are derived for these waves. These equations are then used to investigate the three-dimensional stability of solitary kinetic Alfvén waves and ion-acoustic waves by the small-k perturbation expansion method of Rowlands and Infeld. For kinetic Alfvén waves it is found that there is instability if the direction of the plane-wave perturbation lies inside a cone, and the growth rate of the instability attains a maximum when the direction of the perturbation lies in the plane containing the external magnetic field and the direction of propagation of the solitary wave.

Kinetic Alfvén Waves Excited in Two-Dimensional Magnetic Reconnection

2018 ◽  
Vol 123 (8) ◽  
pp. 6655-6669 ◽  
Author(s):  
Hongtao Huang ◽  
Yiqun Yu ◽  
Lei Dai ◽  
Tieyan Wang
Keyword(s):  
Magnetic Reconnection ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Two Dimensional ◽  
Kinetic Alfvén Waves
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