Dust-acoustic solitary waves in an inhomogeneous magnetized hot dusty plasma with dust charge fluctuations
- Department of Mathematics, Siksha Bhabana, Visva-Bharati University, Santiniketan-731 235 (India)
Using a standard reductive perturbation theory, a Zakharov-Kuznnetsov (ZK) equation is derived in an inhomogeneous dusty plasma comprised of negatively charged dust grains of equal radii, Boltzmann distributed electrons and positive ions. The effects of dust thermal pressure, dust charge variation, dust-neutral collision, and the external magnetic field are taken into account. Either compressive or rarefective solitons are shown to exist depending on the critical value of the phase velocity which in turn, depends on the dust temperature and pressure. An analytic soliton solution is obtained and discussed. The behaviors of the soliton amplitude, width, and the Mach number are investigated numerically for different plasma parameters.
- OSTI ID:
- 20787355
- Journal Information:
- Physics of Plasmas, Vol. 13, Issue 6; Other Information: DOI: 10.1063/1.2210928; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMPLITUDES
ANALYTICAL SOLUTION
CATIONS
DUSTS
ELECTRON COLLISIONS
ELECTRON TEMPERATURE
ELECTRONS
EQUATIONS
FLUCTUATIONS
ION ACOUSTIC WAVES
ION COLLISIONS
ION TEMPERATURE
MACH NUMBER
MAGNETIC FIELDS
NUMERICAL ANALYSIS
PERTURBATION THEORY
PHASE VELOCITY
PLASMA
PLASMA PRESSURE
SOLITONS