Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-26T00:45:02.092Z Has data issue: false hasContentIssue false

A parametric study of the influence of non-thermal ions on linear dust-acoustic waves in an unmagnetized dusty plasma

Published online by Cambridge University Press:  10 May 2005

S. K. MAHARAJ
Affiliation:
Hermanus Magnetic Observatory, Hermanus 7200, South Africa
S. R. PILLAY
Affiliation:
University of KwaZulu-Natal, Durban 4041, South Africa
R. BHARUTHRAM
Affiliation:
University of KwaZulu-Natal, Durban 4041, South Africa
S. V. SINGH
Affiliation:
Indian Institute of Geomagnetism, Plot No. 5, Sector-18, New Panvel (W), Navi Mumbai, 410218, India
G. S. LAKHINA
Affiliation:
Indian Institute of Geomagnetism, Plot No. 5, Sector-18, New Panvel (W), Navi Mumbai, 410218, India

Abstract

The influence of non-thermal ions on linear dust-acoustic waves is studied in an unmagnetized plasma consisting of ions which have a non-thermal velocity distribution, Boltzmann-distributed electrons and streaming dust particles. A detailed examination is conducted of the dependence of the real frequency and growth rate of the excited instability on the dust drift speed, temperature, particle densities and the parameter $\alpha$ that determines the non-thermal nature of the energetic ions. Comparisons with approximate analytical solutions are also made.

Type
Papers
Copyright
2005 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)