Effect of zeroth‐order density inhomogeneity on ion acoustic soliton reflection in a finite ion temperature plasma

1991 ◽  
Vol 3 (1) ◽  
pp. 255-258 ◽  
Author(s):  
Sanjay Singh ◽  
R. P. Dahiya
Keyword(s):  
Ion Temperature ◽  
Zeroth Order ◽  
Density Inhomogeneity ◽  
Temperature Plasma ◽  
Ion Acoustic ◽  
Ion Acoustic Soliton

Ion acoustic soliton in weakly relativistic magnetized electron–positron–ion plasma

2009 ◽  
Vol 87 (8) ◽  
pp. 861-866 ◽  
Author(s):  
Tarsem Singh Gill ◽  
Amandeep Singh Bains ◽  
Narsehpal Singh Saini
Keyword(s):  
Vries Equation ◽  
Reductive Perturbation Method ◽  
Ion Temperature ◽  
Ion Acoustic Wave ◽  
Ion Plasma ◽  
Electron Positron ◽  
Relativistic Factor ◽  
Ion Acoustic ◽  
Warm Plasma ◽  
Ion Acoustic Soliton

A theoretical investigation was made for the ion acoustic wave in a weakly relativistic magnetized electron-positron-ion warm plasma. A Korteweg-de vries equation (KdV) is derived by using a standard reductive perturbation method. It is found that the presence of ion temperature (σ), ratios of positron-to-electron density (β), electron-to-positron temperature (α), and relativistic factor (Ur) significantly modify solitonic behavior. The authors observed that these parameters considerably change the amplitude and width of the solitary wave.

Arbitrary-amplitude theory of ion-acoustic solitons in warm multi-fluid plasmas

1989 ◽  
Vol 41 (2) ◽  
pp. 341-353 ◽  
Author(s):  
S. Baboolal ◽  
R. Bharuthram ◽  
M. A. Hellberg
Keyword(s):  
Stationary Wave ◽  
Ion Concentration ◽  
Ion Temperature ◽  
Ion Plasma ◽  
Numerical Theory ◽  
Ion Acoustic ◽  
Wave Forms ◽  
Ion Acoustic Solitons ◽  
Arbitrary Amplitude ◽  
Ion Acoustic Soliton

A recently described numerical theory for obtaining the Sagdeev and real potential profiles of stationary wave forms in a plasma consisting of double-Maxwellian electrons and two or more species of warm ions is used for the study of solitons in such a plasma. The effects of ion temperature and light-ion concentration on rarefactive ion-acoustic soliton profiles in a double-ion plasma obtained with this large-amplitude theory are compared with those predicted from a Korteweg–de Vries equation. Application of the theory to the work of Nakamura and co-workers is discussed, and we draw attention to ion thermal effects.

Ion-acoustic solitons in a two electron-temperature plasma consisting of warm ions

1984 ◽  
Vol 62 (1) ◽  
pp. 45-49 ◽  
Author(s):  
P. N. Murthy ◽  
S. G. Tagare ◽  
P. S. Abrol
Keyword(s):  
Phase Velocity ◽  
Electron Temperature ◽  
Vries Equation ◽  
Small Concentration ◽  
Hydrodynamic Equations ◽  
Electron Component ◽  
Ion Temperature ◽  
Temperature Plasma ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons

The effect of finite ion temperature and a small concentration of a cooler electron component on the width and phase velocity ion-acoustic solitons in a plasma with adiabatic ions and isothermal electrons with two electron-temperatures is investigated. A small concentration of a cooler electron component leads to effects qualitatively different from those obtained in a single-electron temperature plasma. By using hydrodynamic equations for warm ions and two-electron temperature plasma, Korteweg–de Vries equation is derived.

Cylindrical or spherical dust-ion acoustic soliton in an adiabatic dusty plasma with electrons following a q-nonextensive distribution

2012 ◽  
Vol 90 (6) ◽  
pp. 525-530 ◽  
Author(s):  
Parvin Eslami ◽  
Marzieh Mottaghizadeh ◽  
Hamid Reza Pakzad
Keyword(s):  
Dusty Plasma ◽  
Kdv Equation ◽  
Perturbation Technique ◽  
Dust Particles ◽  
Ion Temperature ◽  
Ion Acoustic ◽  
Nonextensive Distribution ◽  
Ion Acoustic Soliton ◽  
Adiabatic Dusty Plasma ◽  
Dia Waves

Using the reductive perturbation technique, a cylindrical and (or) spherical Korteweg – de Vries (KdV) equation is derived for a dust-ion acoustic solitary wave (DIASW) in an unmagnetized dusty plasma, whose constituents are adiabatic ion fluid, nonextensive electrons, and negatively charged static dust particles. The solution of the modified KdV equation in nonplanar geometry is numerically analyzed. The change of the DIASW structure due to the effect of the geometry, nonextensive parameter, dust density, and ion temperature is investigated by numerical calculation of the cylindrical and (or) spherical KdV equation. It is found that both compressive and rarefactive type DIA waves are obtained depending on the plasma parameter.

Propagation characteristics and reflection of an ion-acoustic soliton in an inhomogeneous plasma having warm ions

1989 ◽  
Vol 41 (1) ◽  
pp. 185-197 ◽  
Author(s):  
Sanjay Singh ◽  
R. P. Dahiya
Keyword(s):  
Inhomogeneous Plasma ◽  
Landau Damping ◽  
Propagation Characteristics ◽  
Ion Temperature ◽  
Reflected Wave ◽  
Ion Acoustic ◽  
Soliton Amplitude ◽  
Ion Acoustic Soliton ◽  
Local Speed ◽  
Peak Value

The problem of propagation of an ion-acoustic soliton and its reflection in a weakly inhomogeneous plasma is considered, taking into account the effect of finite ion temperature. A reductive perturbation analysis is carried out to obtain expressions for the local speed, amplitude and width of the soliton. The peak value of the soliton amplitude increases and the soliton width decreases with increasing ion temperature. An equation describing the dependence of the reflected-wave amplitude on ion temperature is obtained. The amplitude of the reflected wave is observed to decrease with increasing ion temperature on account of Landau damping.

Dust–ion–acoustic soliton in an inhomogeneous collisional plasma

2004 ◽  
Vol 11 (4) ◽  
pp. 1366-1371 ◽  
Author(s):  
Yang-fang Li ◽  
J. X. Ma ◽  
Jing-ju Li
Keyword(s):  
Collisional Plasma ◽  
Ion Acoustic ◽  
Ion Acoustic Soliton
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