Effects of trapped ions concentration on the dynamics of dust‐acoustic periodic travelling waves in dusty plasmas

2021 ◽  
Author(s):  
M.M. Selim ◽  
H. Abdelaleem ◽  
N.A. El‐Bedwehy ◽  
E.F. El‐Shamy
Keyword(s):  
Travelling Waves ◽  
Dusty Plasmas ◽  
Trapped Ions ◽  
Dust Acoustic

Large-amplitude dust-acoustic solitary waves in an electron-depleted hot dusty plasma with trapped ions

2008 ◽  
Vol 86 (8) ◽  
pp. 975-983 ◽  
Author(s):  
M Tribeche ◽  
S Younsi ◽  
T H Zerguini
Keyword(s):  
Dusty Plasma ◽  
Large Amplitude ◽  
Dusty Plasmas ◽  
Trapped Ions ◽  
Ion Trapping ◽  
Dust Particles ◽  
Dust Temperature ◽  
Dust Acoustic ◽  
Nonlinear Potential ◽  
52.35 Tc

A theoretical model is presented to show the existence, formation, and possible realization of large-amplitude dust-acoustic solitary potentials in electron-depleted hot dusty plasma with trapped ions. These nonlinear localized structures are self-consistent solutions of the Vlasov equation in which the ion response is non-Maxwellian due to the ion trapping in the large-amplitude plasma potentials. Emphasis is given to the role of the grain temperature. Interestingly, one finds that the effect of increasing the dust temperature is to restrict the domain of allowable Mach numbers. The latter enlarges when the relative amount of trapped ions is increased. Furthermore, the nonlinear potential shrinks and exhibits smaller depth and smaller width than the one involving cold dust grains. The strong localization of the dust particles becomes less pronounced when the dust temperature is increased. The results complement and provide new insights into previously published results on this problem and their relevance to space dusty plasmas is pointed out.PACS Nos.: 52.27.Lw; 52.35.Fp; 52.35.Sb; 52.35.Tc; 52.35.Mw

Dust-Acoustic Shock Waves in a Self-Gravitating Opposite Polarity Dusty Plasmas With Trapped Ions

2019 ◽  
Vol 47 (9) ◽  
pp. 4385-4390
Author(s):  
Rawson Ara Sumi ◽  
Ismita Tasnim ◽  
M. G. M. Anowar ◽  
A. A. Mamun
Keyword(s):  
Shock Waves ◽  
Dusty Plasmas ◽  
Opposite Polarity ◽  
Trapped Ions ◽  
Dust Acoustic

scholarly journals Nonlinear dust-acoustic solitary waves and shocks in dusty plasmas with a pair of trapped ions

2017 ◽  
Vol 24 (7) ◽  
pp. 073703 ◽  
Author(s):  
Nirab C. Adhikary ◽  
Amar P. Misra ◽  
Manoj K. Deka ◽  
Apul N. Dev
Keyword(s):  
Solitary Waves ◽  
Dusty Plasmas ◽  
Trapped Ions ◽  
Dust Acoustic Solitary Waves ◽  
Dust Acoustic

scholarly journals Comparative study of dust acoustic solitons in two-temperature ion homogeneous and inhomogeneous plasmas

2020 ◽  
Vol 14 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Rashmi Srivastava ◽  
Hitendra K. Malik ◽  
Devi Singh
Keyword(s):  
Solitary Waves ◽  
Inhomogeneous Plasma ◽  
Low Frequency ◽  
Soliton Solutions ◽  
Dusty Plasmas ◽  
Number Density ◽  
Dust Charge ◽  
Plasma Species ◽  
Dust Acoustic ◽  
Two Temperature

AbstractThe dust acoustic solitary waves are theoretically investigated in dusty plasmas for different cases of with and without density gradients. These low-frequency solitary waves are studied using appropriate Korteweg–de Vries equations obtained using relevant stretched coordinates. The soliton solutions in homogeneous plasma, weakly inhomogeneous plasma and strongly inhomogeneous plasma, are thoroughly investigated for studying the effect of different parameters like dust charge and density of all the plasma species on the soliton profiles. The combination of the dust charge with its number density changes the dynamics of the solitons and that is further affected by the number density of the hot ion with respect to the cold ions.

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