ELECTROSTATIC OSCILLATIONS IN THE PRESENCE OF GRAIN-CHARGE PERTURBATIONS IN DUSTY PLASMAS

Authors
VARMA RK SHUKLA PK KRISHAN V
Citation
Rk. Varma et al., ELECTROSTATIC OSCILLATIONS IN THE PRESENCE OF GRAIN-CHARGE PERTURBATIONS IN DUSTY PLASMAS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 47(5), 1993, pp. 3612-3616
Citations number
25
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
47
Issue
5
Year of publication
1993
Pages
3612 - 3616
Database
ISI
SICI code
1063-651X(1993)47:5<3612:EOITPO>2.0.ZU;2-9
Abstract
The properties of electrostatic oscillations and instability phenomena are studied, accounting for the time-dependent variation of the grain electric charge due to wave motions in an unmagnetized dusty plasma. It is found that charge fluctuations on the dust grains give rise to t wo purely damped modes, in addition to causing a collisionless damping of the existing normal modes. Furthermore, some interesting electrost atic instabilities arise in the presence of an equilibrium drift of ch arged fluids.