Abstract
Arbitrary amplitude dust acoustic waves in a dusty plasma with a high-energy-tail electron distribution are investigated. The effects of charge variation and electron deviation from the Boltzmann distribution on the dust acoustic soliton are then considered. The dust charge variation makes the dust acoustic soliton more spiky. The dust grain surface collects less electrons as the latter evolves far away from their thermodynamic equilibrium. The dust accumulation caused by a balance of the electrostatic forces acting on the dust grains is more effective for lower values of the electron spectral index. Under certain conditions, the dust charge fluctuation may provide an alternate physical mechanism causing anomalous dissipation, the strength of which becomes important and may prevail over that of dispersion as the suprathermal character of the plasma becomes important. Our results may explain the strong spiky waveforms observed in auroral plasmas.
Tribeche, Mouloud;
Bacha, Mustapha
[1]
- Faculty of Sciences-Physics, Theoretical Physics Laboratory, Plasma Physics Group, University of Bab-Ezzouar, USTHB, B.P. 32, El Alia, Algiers 16111 (Algeria)
Citation Formats
Tribeche, Mouloud, and Bacha, Mustapha.
Nonlinear dust acoustic waves in a charge varying dusty plasma with suprathermal electrons.
United States: N. p.,
2010.
Web.
doi:10.1063/1.3449806.
Tribeche, Mouloud, & Bacha, Mustapha.
Nonlinear dust acoustic waves in a charge varying dusty plasma with suprathermal electrons.
United States.
https://doi.org/10.1063/1.3449806
Tribeche, Mouloud, and Bacha, Mustapha.
2010.
"Nonlinear dust acoustic waves in a charge varying dusty plasma with suprathermal electrons."
United States.
https://doi.org/10.1063/1.3449806.
@misc{etde_21389150,
title = {Nonlinear dust acoustic waves in a charge varying dusty plasma with suprathermal electrons}
author = {Tribeche, Mouloud, and Bacha, Mustapha}
abstractNote = {Arbitrary amplitude dust acoustic waves in a dusty plasma with a high-energy-tail electron distribution are investigated. The effects of charge variation and electron deviation from the Boltzmann distribution on the dust acoustic soliton are then considered. The dust charge variation makes the dust acoustic soliton more spiky. The dust grain surface collects less electrons as the latter evolves far away from their thermodynamic equilibrium. The dust accumulation caused by a balance of the electrostatic forces acting on the dust grains is more effective for lower values of the electron spectral index. Under certain conditions, the dust charge fluctuation may provide an alternate physical mechanism causing anomalous dissipation, the strength of which becomes important and may prevail over that of dispersion as the suprathermal character of the plasma becomes important. Our results may explain the strong spiky waveforms observed in auroral plasmas.}
doi = {10.1063/1.3449806}
journal = []
issue = {7}
volume = {17}
place = {United States}
year = {2010}
month = {Jul}
}
title = {Nonlinear dust acoustic waves in a charge varying dusty plasma with suprathermal electrons}
author = {Tribeche, Mouloud, and Bacha, Mustapha}
abstractNote = {Arbitrary amplitude dust acoustic waves in a dusty plasma with a high-energy-tail electron distribution are investigated. The effects of charge variation and electron deviation from the Boltzmann distribution on the dust acoustic soliton are then considered. The dust charge variation makes the dust acoustic soliton more spiky. The dust grain surface collects less electrons as the latter evolves far away from their thermodynamic equilibrium. The dust accumulation caused by a balance of the electrostatic forces acting on the dust grains is more effective for lower values of the electron spectral index. Under certain conditions, the dust charge fluctuation may provide an alternate physical mechanism causing anomalous dissipation, the strength of which becomes important and may prevail over that of dispersion as the suprathermal character of the plasma becomes important. Our results may explain the strong spiky waveforms observed in auroral plasmas.}
doi = {10.1063/1.3449806}
journal = []
issue = {7}
volume = {17}
place = {United States}
year = {2010}
month = {Jul}
}