Large amplitude dust-acoustic solitary waves in electron-positron-ion plasma with dust grains

Esfandyari-Kalejahi, A.; Afsari-Ghazi, M.; Noori, K.; Irani, S.

doi:10.1063/1.4745652

Cited by 28 publications

(25 citation statements)

References 60 publications

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“…The large-amplitude dust-acoustic solitary waves are investigated in electron-positron-ion plasma with dust grains by using Sagdeev potential approaches in ref. [11]. Jehan et al [12] analysed planar and nonplanar dust-acoustic solitary waves in electron-positronion-dust plasmas.…”

Section: Introductionmentioning

confidence: 98%

Planar dust-acoustic waves in electron–positron–ion–dust plasmas with dust-size distribution under higher-order transverse perturbations

Wang

Zhang

2014

Pramana - J Phys

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Propagation of small but finite nonlinear dust-acoustic solitary waves are investigated in a planar unmagnetized dusty plasma, which consists of electrons, positrons, ions and negatively charged dust particles with different sizes and masses. A Kadomtsev-Petviashvili (KP) equation is obtained by using reductive perturbation method. The effect of positron density and positronelectron temperature ratio on dust-acoustic solitary structures are studied. Numerical results show that the increase in positron number density increases the amplitude of hump-like solitons but decreases the dip-like solitary waves. Furthermore, increase in the positron-electron temperature ratio results in the decrease of the amplitude of dip-like solitary waves. It seems that both the dip and hump-like solitary waves can exist in this system. Our results also suggest that the dust-size distribution has a significant role on the amplitude of the solitary waves.

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Section: Introductionmentioning

confidence: 98%

Planar dust-acoustic waves in electron–positron–ion–dust plasmas with dust-size distribution under higher-order transverse perturbations

Wang

Zhang

2014

Pramana - J Phys

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“…For example, the presence of highly-charged dust particles modifies the nonlinear properties of ion acoustic waves [17][18][19]. Recently, ion acoustic solitons and double layers in electronpositron-ion plasmas with dust particulates were studied [20] and large-amplitude dust-acoustic solitary waves in electron-positron-ion plasma with dust grains were investigated by using Sagdeev potential method [21]. In addition, planar and nonplanar dust acoustic solitary waves in electron-positron-ion-dust plasmas were studied [22].…”

Section: Introductionmentioning

confidence: 99%

Planar dust-acoustic waves in electron-positron-ion-dust plasmas with dust size distribution

Wang

Zhang

2014

Journal of the Korean Physical Society

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Nonlinear dust-acoustic solitary waves which are described with a Kortweg-de vries (KdV) equation by using the reductive perturbation method, are investigated in a planar unmagnetized dusty plasma consisting of electrons, positrons, ions and negatively-charged dust particles of different sizes and masses. The effects of the power-law distribution of dust and other plasma parameters on the dust-acoustic solitary waves are studied. Numerical results show that the dust size distribution has a significant influence on the propagation properties of dust-acoustic solitons. The amplitudes of solitary waves in the case of a power-law distribution is observed to be smaller, but the soliton velocity and width are observed to be larger, than those of mono-sized dust grains with an average dust size. Our results indicate that only compressed solitary waves exist in dusty plasma with different dust species. The relevance of the present investigation to interstellar clouds is discussed.

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“…as well as laboratory plasmas [1] has encouraged researchers to investigate the propagation of electrostatic perturbation. Plasma physicists have encountered with dust-acoustic (DA) waves (DAWs), [1][2][3] dust-ion-acoustic (DIA) waves (DIAWs), [4] and DIA cnoidal waves (DIA-CWs) [5] as well as their associated non-linear structures such as shock, solitary, [1,2] and double layers (DLs) [6,7] to manifest the non-linear intrinsic properties of an electron-positron-ion-dust (EPID) plasma medium in the presence of highly energetic positrons. [1][2][3][4] The empirical results have shown the signature of the fast particles in the space [5][6][7][8][9] and laboratory DPM.…”

Section: Introductionmentioning

confidence: 99%

Dust‐acoustic envelope solitons in super‐thermal plasmas

Noman

Chowdhury

Mannan

et al. 2019

Contributions to Plasma Physics

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The modulational instability (MI) of the dust‐acoustic waves (DAWs) in an electron‐positron‐ion‐dust plasma (containing super‐thermal electrons, positrons, and ions along with negatively charged adiabatic dust grains) is investigated by the analysis of the non‐linear Schrödinger equation (NLSE). To derive the NLSE, the reductive perturbation method was employed. Two different parametric regions for stable and unstable DAWs are observed. The presence of super‐thermal electrons, positrons, and ions significantly modifies both the stable and unstable regions. The critical wave number kc (at which MI sets in) depends on the super‐thermal electron, positron, and ion, and adiabatic dust concentrations.

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Large amplitude dust-acoustic solitary waves in electron-positron-ion plasma with dust grains

Cited by 28 publications

References 60 publications

Planar dust-acoustic waves in electron–positron–ion–dust plasmas with dust-size distribution under higher-order transverse perturbations

Planar dust-acoustic waves in electron–positron–ion–dust plasmas with dust-size distribution under higher-order transverse perturbations

Planar dust-acoustic waves in electron-positron-ion-dust plasmas with dust size distribution

Dust‐acoustic envelope solitons in super‐thermal plasmas

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