Abstract
In this investigation, the effect of polarization force on dust kinetic Alfvén solitary waves (DKASWs) in a magnetized dusty plasma consisting of dust fluid, electrons, and positively charged ions is studied. By incorporating density non-uniformity and polarization force in the fluid model equations, the energy balance equation is derived, and from the expression for Sagdeev pseudopotential, the existence conditions for solitary structures in terms of Mach number are determined. From the numerical analysis of Sagdeev pseudopotential, compressive and rarefactive DKASWs at sub- and super-Alfvénic speeds are observed. These waves are significantly affected by varying polarization force, angle of propagation, plasma beta, and Mach number.
Original language | English |
---|---|
Article number | 023705 |
Journal | Physics of Plasmas |
Volume | 25 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1 2018 |
Externally published | Yes |
Funding
This work was supported by DRS-II(SAP), No. F. 530/17/DRS-II/2015(SAP-I) UGC, New Delhi. M.S. acknowledges the support provided by University Grants Commission, New Delhi under Rajiv Gandhi National Fellowship.
Funders | Funder number |
---|---|
M.S.I. Foundation | |
University Grants Commission | |
University Grants Committee |