ION ACOUSTIC SOLITONS IN DENSE MAGNETIZED PLASMAS WITH NONRELATIVISTIC AND ULTRARELATIVISTIC DEGENERATE ELECTRONS AND POSITRONS

2014 ◽  
Vol 793 (1) ◽  
pp. 27 ◽  
Author(s):  
Safeer Sadiq ◽  
S. Mahmood ◽  
Q. Haque ◽  
Munazza Zulfiqar Ali
Keyword(s):  
Magnetized Plasmas ◽  
Electrons And Positrons ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons

Nonlinear dust–ion acoustic waves in a dusty plasma with non-extensive electrons and ions

2013 ◽  
Vol 79 (5) ◽  
pp. 569-576 ◽  
Author(s):  
MUSTAPHA BACHA ◽  
MOULOUD TRIBECHE
Keyword(s):  
Acoustic Waves ◽  
Double Layers ◽  
Perturbation Approach ◽  
Ion Acoustic Waves ◽  
Localized Structures ◽  
Electron Positron ◽  
Electrons And Positrons ◽  
Electrons And Ions ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons

AbstractUsing the reductive perturbation approach, dust–ion acoustic solitons and double layers (DLs) have been studied in a dust–electron–positron–ion (d-e-p-i) plasma composed of q-distributed electrons and positrons, warm fluid ions, and a fraction of immobile dust grains. Existence domains of either solitary waves or DLs are presented and their parametric dependence determined. It is found that particle non-extensivity, dust concentration and positron concentration may drastically affect these existence domains and may play a key role in defining the polarity of these localized structures. Our results should assist in interpreting the nonlinear structures that may occur in astrophysical environments.

Observation of Spherical Ion-Acoustic Solitons

1980 ◽  
Vol 45 (19) ◽  
pp. 1565-1569 ◽  
Author(s):  
Y. Nakamura ◽  
M. Ooyama ◽  
T. Ogino
Keyword(s):  
Ion Acoustic ◽  
Ion Acoustic Solitons
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