Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty Plasma
The formation of gigantic dust-acoustic (DA) rouge waves (DARWs) in an electron depleted unmagnetized opposite polarity dusty plasma system is theoretically predicted. The nonlinear Schrödinger equation (NLSE) is derived by employing the reductive perturbation method. It is found that the NLSE leads...
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doaj-da846ea3453f4af586dbae23868d8a322021-04-16T23:07:13ZengMDPI AGPlasma2571-61822021-04-0141523023810.3390/plasma4020015Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty PlasmaJebun Naher Sikta0Nure Alam Chowdhury1Abdul Mannan2Sharmin Sultana3A A Mamun4Faculty of Science and Information Technology, Daffodil International University, Dhaka-1207, BangladeshPlasma Physics Division, Atomic Energy Centre, Dhaka-1000, BangladeshDepartment of Physics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshDepartment of Physics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshDepartment of Physics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshThe formation of gigantic dust-acoustic (DA) rouge waves (DARWs) in an electron depleted unmagnetized opposite polarity dusty plasma system is theoretically predicted. The nonlinear Schrödinger equation (NLSE) is derived by employing the reductive perturbation method. It is found that the NLSE leads to the modulational instability (MI) of DA waves (DAWs), and to the formation of DARWs, which are caused by to the effects of nonlinearity and dispersion in the propagation of DAWs. The conditions for the MI of DAWs and the basic properties of the generated DARWs are numerically identified. It is also seen that the striking features (viz., instability criteria, amplitude and width of DARWs, etc.) of the DAWs are significantly modified by the effects of super-thermality of ions, number density, mass and charge state of the plasma species, etc. The results obtained from the present investigation will be useful in understanding the MI criteria of DAWs and associated DARWs in electron depleted unmagnetized opposite polarity dusty plasma systems like Earth’s mesosphere (where the D-region plasma could suffer from electron density depletion), cometary tails, Jupiter’s magnetosphere, and F-ring of Saturn, etc.https://www.mdpi.com/2571-6182/4/2/15dust-acoustic wavesNLSErogue waveselectron depleted plasma |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jebun Naher Sikta Nure Alam Chowdhury Abdul Mannan Sharmin Sultana A A Mamun |
spellingShingle |
Jebun Naher Sikta Nure Alam Chowdhury Abdul Mannan Sharmin Sultana A A Mamun Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty Plasma Plasma dust-acoustic waves NLSE rogue waves electron depleted plasma |
author_facet |
Jebun Naher Sikta Nure Alam Chowdhury Abdul Mannan Sharmin Sultana A A Mamun |
author_sort |
Jebun Naher Sikta |
title |
Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty Plasma |
title_short |
Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty Plasma |
title_full |
Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty Plasma |
title_fullStr |
Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty Plasma |
title_full_unstemmed |
Electrostatic Dust-Acoustic Rogue Waves in an Electron Depleted Dusty Plasma |
title_sort |
electrostatic dust-acoustic rogue waves in an electron depleted dusty plasma |
publisher |
MDPI AG |
series |
Plasma |
issn |
2571-6182 |
publishDate |
2021-04-01 |
description |
The formation of gigantic dust-acoustic (DA) rouge waves (DARWs) in an electron depleted unmagnetized opposite polarity dusty plasma system is theoretically predicted. The nonlinear Schrödinger equation (NLSE) is derived by employing the reductive perturbation method. It is found that the NLSE leads to the modulational instability (MI) of DA waves (DAWs), and to the formation of DARWs, which are caused by to the effects of nonlinearity and dispersion in the propagation of DAWs. The conditions for the MI of DAWs and the basic properties of the generated DARWs are numerically identified. It is also seen that the striking features (viz., instability criteria, amplitude and width of DARWs, etc.) of the DAWs are significantly modified by the effects of super-thermality of ions, number density, mass and charge state of the plasma species, etc. The results obtained from the present investigation will be useful in understanding the MI criteria of DAWs and associated DARWs in electron depleted unmagnetized opposite polarity dusty plasma systems like Earth’s mesosphere (where the D-region plasma could suffer from electron density depletion), cometary tails, Jupiter’s magnetosphere, and F-ring of Saturn, etc. |
topic |
dust-acoustic waves NLSE rogue waves electron depleted plasma |
url |
https://www.mdpi.com/2571-6182/4/2/15 |
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