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- Title
Ion acoustic solitons in negative ion plasmas with superthermal electrons.
- Authors
Hussain, S.; Akhtar, N.; Mahmood, S.
- Abstract
Korteweg-de Vries (KdV) equation for electrostatic wave in an unmagnetized negative ion plasma with superthermal electrons is derived using reductive perturbation technique. A generalized Lorentzian distribution (kappa distribution) is assumed for the electrons. The influence of spectral index (kappa) on the soliton is discussed in the presence of the negative ions. It is found that different plasma parameters such as (negative ion temperature, positive ion temperature, negative ion concentration, mass ratio of positive to negative ion) in the presence of superthermal electrons modify the ion acoustic solitary wave structure significantly.
- Subjects
ION acoustic waves; SOLITONS; THERMAL electrons; TEMPERATURE effect; KORTEWEG-de Vries equation; QUANTUM perturbations; ASTROPHYSICS
- Publication
Astrophysics & Space Science, 2012, Vol 338, Issue 2, p265
- ISSN
0004-640X
- Publication type
Article
- DOI
10.1007/s10509-011-0943-z