Density and temperature effects on a surface electron-acoustic wave in a semi-bounded dusty plasma of two-temperature electrons

2007 ◽  
Vol 73 (4) ◽  
pp. 433-438 ◽  
Author(s):  
DAE-HAN KI ◽  
YOUNG-DAE JUNG
Keyword(s):  
Acoustic Wave ◽  
Phase Velocity ◽  
Dusty Plasma ◽  
Plasma Wave ◽  
Hot Electrons ◽  
Surface Electron ◽  
Electron Acoustic Wave ◽  
Cold Electrons ◽  
Electron Acoustic ◽  
Two Temperature

AbstractThe effects of density and temperature on a surface electron-acoustic plasma wave are investigated in a semi-bounded dusty plasma of two-temperature electrons. The dispersion relation of the surface electron-acoustic plasma wave is obtained by the plasma dielectric function with the specular reflection boundary condition. The phase velocity is found to be decreased when increasing the ratio of the temperature of hot electrons to that of cold electrons for large wave numbers. It is also found that the phase velocity increases with an increase in the ratio of the density of hot electrons to that of cold electrons and that the phase velocity of the surface electron-acoustic wave increases with an increase in the density of the dust grains.

Electron acoustic wave in a dusty plasma

2002 ◽  
Vol 50 (7-8) ◽  
pp. 807-810 ◽  
Author(s):  
J Vranješ ◽  
H Saleem ◽  
S Poedts
Keyword(s):  
Acoustic Wave ◽  
Dusty Plasma ◽  
Electron Acoustic Wave ◽  
Electron Acoustic

Electron acoustic wave driven vortices with non-Maxwellian hot electrons in magnetoplasmas

2014 ◽  
Vol 21 (7) ◽  
pp. 072101 ◽  
Author(s):  
Q. Haque ◽  
Arshad M. Mirza ◽  
U. Zakir
Keyword(s):  
Acoustic Wave ◽  
Hot Electrons ◽  
Electron Acoustic Wave ◽  
Electron Acoustic

The Electron Acoustic Wave and Its Role in Solar Flaring Loops Heating

2020 ◽  
Vol 904 (2) ◽  
pp. 193
Author(s):  
L. Chen ◽  
D. J. Wu ◽  
L. Xiang ◽  
C. Shi ◽  
B. Ma ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Electron Acoustic Wave ◽  
Electron Acoustic

scholarly journals Obliquely propagating electron acoustic solitons in magnetized plasmas with nonextensive electrons

2013 ◽  
Vol 20 (2) ◽  
pp. 249-255 ◽  
Author(s):  
H. R. Pakzad ◽  
K. Javidan
Keyword(s):  
Small Amplitude ◽  
Hot Electrons ◽  
Magnetized Plasmas ◽  
Nonextensive Electrons ◽  
Long Range Interactions ◽  
Nonextensive Distribution ◽  
Cold Electrons ◽  
Soliton Amplitude ◽  
Population Ratio ◽  
Electron Acoustic

Abstract. The problem of small amplitude electron-acoustic solitary waves (EASWs) is discussed using the reductive perturbation theory in magnetized plasmas consisting of cold electrons, hot electrons obeying nonextensive distribution and stationary ions. The presented investigation shows that the presence of nonextensive distributed hot electrons (due to the effects of long-range interactions) causes a reduction in the soliton amplitude while its width increases. The effects of the population ratio of hot to cold electrons and also the effects of the presence of magnetic field in this situation are also discussed.

Numerical study of the sheath in magnetized dusty plasma with two-temperature electrons

2014 ◽  
Vol 81 (1) ◽  
Author(s):  
I. Driouch ◽  
H. Chatei ◽  
M. El Bojaddaini
Keyword(s):  
Dusty Plasma ◽  
Numerical Study ◽  
Plasma Sheath ◽  
Hot Electrons ◽  
Dust Grains ◽  
Magnetized Dusty Plasma ◽  
Positive Ions ◽  
Different Temperatures ◽  
Dimensionless Variables ◽  
Two Temperature

Fluid simulations are used to investigate a multi-component magnetized dusty plasma sheath. The model consists of positive ions, dust grains, and two species of electron populations. These electrons are assumed to be a sum of two Maxwellian distributions with two different temperatures (cold and hot). According to multi-fluid equations and some dimensionless variables, the dimensionless equations are obtained and solved numerically. The effect of the presence of the hot electrons in the sheath is examined. A significant change is observed in the quantities characterizing the sheath with respect to one species electrons (cold) assumption.

Linear and nonlinear modified electron-acoustic waves

1983 ◽  
Vol 29 (3) ◽  
pp. 409-413 ◽  
Author(s):  
M. Y. Yu ◽  
P. K. Shukla
Keyword(s):  
Acoustic Wave ◽  
Acoustic Waves ◽  
Electron Number Density ◽  
Cold Electron ◽  
Number Density ◽  
Electron Number ◽  
Electron Acoustic Waves ◽  
Electron Acoustic Wave ◽  
Linear And Nonlinear ◽  
Electron Acoustic

It is shown that a modified electron-acoustic wave exists in a plasma with distinct hot and cold electron components. The frequency of this wave depends strongly on the cold electron number density. Solitons associated with the modified electron-acoustic waves are also discussed.

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