Arbitrary amplitude fast electron-acoustic solitons in three-electron component space plasmas

2016 ◽  
Vol 23 (6) ◽  
pp. 062302 ◽  
Author(s):  
L. N. Mbuli ◽  
S. K. Maharaj ◽  
R. Bharuthram ◽  
S. V. Singh ◽  
G. S. Lakhina
Keyword(s):  
Fast Electron ◽  
Space Plasmas ◽  
Electron Component ◽  
Arbitrary Amplitude ◽  
Electron Acoustic

Arbitrary-amplitude electron-acoustic solitons in a two-electron-component plasma

1991 ◽  
Vol 45 (3) ◽  
pp. 323-338 ◽  
Author(s):  
R. L. Mace ◽  
S. Baboolal ◽  
R. Bharuthram ◽  
M. A. Hellberg
Keyword(s):  
Perturbation Technique ◽  
Soliton Solutions ◽  
Hot Electron ◽  
Electron Component ◽  
Initial Value ◽  
Wave Measurements ◽  
Component Plasma ◽  
Arbitrary Amplitude ◽  
Electron Acoustic ◽  
Nonlinear Fluid

Motivated by plasma and wave measurements in the cusp auroral region, we have investigated electron-acoustic solitons in a plasma consisting of fluid ions, a cool fluid electron and a hot Boltzmann electron component. A recently described method of integrating the full nonlinear fluid equations as an initial-value problem is used to construct electron-acoustic solitons of arbitrary amplitude. Using the reductive perturbation technique, a Korteweg-de Vries equation, which includes the effects of finite cool-electron and ion temperatures, is derived, and results are compared with the full theory. Both theories admit rarefactive soliton solutions only. The solitons are found to propagate at speeds greater than the electron sound speed (ε0c/ε0ε)½υε, and their profiles are independent of ion parameters. It is found that the KdV theory is not a good approximation for intermediate-strength solitons. Nor does it exhibit the fact that the cool- to hot-electron temperature ratio restricts the parameter range over which electron-acoustic solitons may exist, as found in the arbitrary-amplitude calculations.

Arbitrary amplitude slow electron-acoustic solitons in three-electron temperature space plasmas

2015 ◽  
Vol 22 (6) ◽  
pp. 062307 ◽  
Author(s):  
L. N. Mbuli ◽  
S. K. Maharaj ◽  
R. Bharuthram ◽  
S. V. Singh ◽  
G. S. Lakhina
Keyword(s):  
Electron Temperature ◽  
Space Plasmas ◽  
Slow Electron ◽  
Arbitrary Amplitude ◽  
Electron Acoustic

Electron acoustic surface waves in a two‐electron component plasma

1993 ◽  
Vol 5 (12) ◽  
pp. 4502-4504 ◽  
Author(s):  
R. Bharuthram ◽  
S. S. Misthry ◽  
M. Y. Yu
Keyword(s):  
Surface Waves ◽  
Electron Component ◽  
Component Plasma ◽  
Acoustic Surface Waves ◽  
Electron Acoustic

Ion- and electron-acoustic solitons and double layers in multi-component space plasmas

2011 ◽  
Vol 47 (9) ◽  
pp. 1558-1567 ◽  
Author(s):  
G.S. Lakhina ◽  
S.V. Singh ◽  
A.P. Kakad
Keyword(s):  
Double Layers ◽  
Space Plasmas ◽  
Electron Acoustic
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