Jeans instability in collisional strongly coupled dusty plasma with radiative condensation and polarization force
- Department of Pure and Applied Physics, Guru Ghasidas Central University, Bilaspur-495009 (C.G.) (India)
- Retired from School of Studies in Physics, Vikram University, Ujjain-456010 (M.P.) (India)
The influence of dust-neutral collisions, polarization force, and electron radiative condensation is analysed on the Jeans (gravitational) instability of partially ionized strongly coupled dusty plasma (SCDP) using linear perturbation (normal mode) analysis. The Boltzmann distributed ions, dynamics of inertialess electrons, charged dust and neutral particles are considered. Using the plane wave solutions, a general dispersion relation is derived which is modified due to the presence of dust-neutral collisions, strong coupling effect, polarization force, electron radiative condensation, and Jeans dust/neutral frequencies. In the long wavelength perturbations, the Jeans instability criterion depends upon strong coupling effect, polarization interaction parameter, and thermal loss, but it is independent of dust-neutral collision frequency. The stability of the considered configuration is analysed using the Routh–Hurwitz criterion. The growth rates of Jeans instability are illustrated, and stabilizing influence of viscoelasticity and dust-neutral collision frequency while destabilizing effect of electron radiative condensation, polarization force, and Jeans dust-neutral frequency ratio is observed. This work is applied to understand the gravitational collapse of SCDP with dust-neutral collisions.
- OSTI ID:
- 22600106
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 23; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
79 ASTRONOMY AND ASTROPHYSICS
BOLTZMANN STATISTICS
COLLISIONS
DISPERSION RELATIONS
DISTURBANCES
DUSTS
ELECTRONS
GRAVITATIONAL COLLAPSE
GRAVITATIONAL INSTABILITY
IONS
NEUTRAL PARTICLES
NORMAL-MODE ANALYSIS
PERTURBATION THEORY
PLASMA
POLARIZATION
STRONG-COUPLING MODEL
WAVE PROPAGATION
WAVELENGTHS
79 ASTRONOMY AND ASTROPHYSICS
BOLTZMANN STATISTICS
COLLISIONS
DISPERSION RELATIONS
DISTURBANCES
DUSTS
ELECTRONS
GRAVITATIONAL COLLAPSE
GRAVITATIONAL INSTABILITY
IONS
NEUTRAL PARTICLES
NORMAL-MODE ANALYSIS
PERTURBATION THEORY
PLASMA
POLARIZATION
STRONG-COUPLING MODEL
WAVE PROPAGATION
WAVELENGTHS