Kinetic Alfven solitary waves in a magnetized plasma with superthermal electrons
SCIE
SCOPUS
- Title
- Kinetic Alfven solitary waves in a magnetized plasma with superthermal electrons
- Authors
- Panwar, A; Ryu, CM; Bains, AS
- Date Issued
- 2015-09
- Publisher
- AMER INST PHYSICS
- Abstract
- A study of the ion Larmor radius effects on the solitary kinetic Alfven waves (SKAWs) in a magnetized plasma with superthermal electrons is presented by employing the kinetic theory. The linear dispersion relation of SKAW is shown to depend on the superthermal parameter kappa, ion to electron temperature ratio, and the angle of wave propagation. Using the Sagdeev potential approach, the energy balance equation has been derived to study the dynamics of SKAWs. The effects of various plasma parameters are investigated for the propagation of SKAWs. It is shown that only compressive solitons can exist and in the Maxwellian limit our results are in good agreement with previous studies. Further, the characteristics of small amplitude SKAWs are investigated. Present study could be useful for the understanding of SKAWs in a low beta plasma in astrophysical environment, where particle distributions are superthermal in nature. (C) 2015 AIP Publishing LLC.
- Keywords
- SATURNS MAGNETOSPHERE; KAPPA-DISTRIBUTIONS; SPACE PLASMAS; DYNAMICS; MODEL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35459
- DOI
- 10.1063/1.4931993
- ISSN
- 1070-664X
- Article Type
- Article
- Citation
- PHYSICS OF PLASMAS, vol. 22, no. 9, 2015-09
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.