Weakly damped acoustic-like ion waves in plasmas with non-Maxwellian ion distributions

Citation
H. Gunell et F. Skiff, Weakly damped acoustic-like ion waves in plasmas with non-Maxwellian ion distributions, PHYS PLASMA, 8(8), 2001, pp. 3550-3557
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS OF PLASMAS
ISSN journal
1070-664X → ACNP
Volume
8
Issue
8
Year of publication
2001
Pages
3550 - 3557
Database
ISI
SICI code
1070-664X(200108)8:8<3550:WDAIWI>2.0.ZU;2-R
Abstract
Dispersion relations for ion-acoustic-like waves in plasmas with and withou t superthermal particles are calculated using a simple pole expansion of th e distribution function for the ions. It is found that slow weakly damped m odes exist in two-temperature plasmas, and the conditions when these modes appear are investigated. For plasmas with equal ion and electron temperatur es weakly damped modes are found when there is a depletion of the high-ener gy tails. (C) 2001 American Institute of Physics.