Large Amplitude Dust Ion Acoustic Solitons and Double Layers in Dusty Plasmas with Ion Streaming and High-Energy Tail Electron Distribution

2014 ◽  
Vol 61 (3) ◽  
pp. 377-384 ◽  
Author(s):  
Mehran Shahmansouri ◽  
Mouloud Tribeche
Keyword(s):  
Large Amplitude ◽  
Electron Distribution ◽  
High Energy ◽  
Dusty Plasmas ◽  
Double Layers ◽  
High Energy Tail ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons

Large amplitude ion-acoustic solitons in dusty plasmas

2011 ◽  
Vol 18 (8) ◽  
pp. 083702 ◽  
Author(s):  
R. S. Tiwari ◽  
S. L. Jain ◽  
M. K. Mishra
Keyword(s):  
Large Amplitude ◽  
Dusty Plasmas ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons

Electrostatic heat flux instabilities

1978 ◽  
Vol 20 (1) ◽  
pp. 47-60 ◽  
Author(s):  
S. Peter Gary
Keyword(s):  
Heat Flux ◽  
Distribution Function ◽  
Electron Beam ◽  
Electron Distribution ◽  
Electron Distribution Function ◽  
High Energy ◽  
Electrostatic Waves ◽  
High Energy Tail ◽  
Ion Acoustic ◽  
Ion Cyclotron

The linear Vlasov dispersion relation for electrostatic waves in a homogeneous plasma is studied for instabilities driven by an electron heat flux. A two Maxwellian model of the electron distribution function gives rise to three unstable modes: the electron beam, ion-acoustic and ion cyclotron heat flux instabilities. At large Te/Ti the ion-acoustic instability has the lowest threshold; at small Te/Ti the electron beam instability is dominant; and at intermediate values of Te/Ti the ion cyclotron mode is the first to go unstable. The presence of a high energy tail on the electron distribution function raises the value of the dimensionless heat flux qe/(nemev3e) at the ion-acoustic threshold, but increasing atomic number of the ions decreases this value.

Effect of dust size distribution on ion-acoustic solitons in dusty plasmas with different dust grains

2017 ◽  
Vol 43 (2) ◽  
pp. 212-217
Author(s):  
Dong-Ning Gao ◽  
Yang Yang ◽  
Qiang Yan ◽  
Xiao-Yun Wang ◽  
Wen-Shan Duan
Keyword(s):  
Size Distribution ◽  
Dusty Plasmas ◽  
Dust Grains ◽  
Dust Size Distribution ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons

Ion-acoustic solitons and double-layers in a plasma consisting of positive and negative ions with non-thermal electrons

2004 ◽  
Vol 31 (1) ◽  
pp. 91-100 ◽  
Author(s):  
T. S. Gill ◽  
P. Bala ◽  
H. Kaur ◽  
N. S. Saini ◽  
S. Bansal ◽  
...  
Keyword(s):  
Negative Ions ◽  
Double Layers ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons

A Model for Solar Flares Invoking Weak Double Layers

1989 ◽  
Vol 8 (1) ◽  
pp. 29-31 ◽  
Author(s):  
J. I. Khan
Keyword(s):  
Simple Model ◽  
Solar Flares ◽  
Source Region ◽  
High Energy ◽  
Double Layers ◽  
Ion Acoustic ◽  
Ion Acoustic Double Layers

AbstractA simple model for solar flares is described which invokes many ion-acoustic double layers in the source region. The ability of the model to explain some of the observed characteristics of solar flares is discussed, particular attention being paid to the well-observed high-energy flare examined by de Jager et al. (1987).

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