Electrostatic acoustic modes in a self-gravitating complex plasma with variable charge impurities
Abstract
A linear theory of dust acoustic (DA) and dust ion-acoustic (DIA) waves in a self-gravitating collisional dusty plasma contaminated by variable-charge impurities is presented for a self-consistent closed system. The ion-drag force arising from the ion orbital motion as well as momentum transfer from all the ions and self-gravitation are taken into consideration. The physical processes, viz., dust-charge relaxation, ionization, recombination and collisional dissipations are also taken into account self-consistently. The generalized dispersion relation describing the coupling of the acoustic modes with the dust-charge relaxation mode (CRM) and damping of the waves is derived and analyzed numerically.
Keywords
Cite
@article{arxiv.nlin/0501016,
title = {Electrostatic acoustic modes in a self-gravitating complex plasma with variable charge impurities},
author = {Amar P Misra and K. Roy Chowdhury and A. Roy Chowdhury},
journal= {arXiv preprint arXiv:nlin/0501016},
year = {2007}
}
Comments
13 pages, 5 figures. Physics Letters A (2005,To be published)