Abstract
Nonlinear dynamics of electron acoustic waves (EAWs) in a plasma consisting of stationary ions, cool inertial electrons and hot electrons having a nonextensive distribution is studied. Under transverse perturbations, the nonlinear wave can be described by the general form of the Davey-Stewartson (DS) equations. The reductive perturbation technique is employed to derive Davey-Stewartson equations. From the solutions of these equations, amplitude modulation properties and stability regions of EAWs are studied in two-dimensional plasma. Further, the influence of nonextensivity of hot electrons (via q) on the characteristics of EAWs has been analysed.
Original language | English |
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Pages (from-to) | 293-303 |
Number of pages | 11 |
Journal | Astrophysics and Space Science |
Volume | 349 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2014 |
Externally published | Yes |
Funding
Acknowledgements This work was supported by University Grants Commission, New Delhi, India under the major research project F. No. 41-873/2012(SR).
Funders | Funder number |
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University Grants Commission | 41-873/2012 |
Keywords
- Davey-Stewartson equation
- Dromions
- Electron acoustic
- Nonextensive distribution
- Solitary waves