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Dust charging processes with a Cairns-Tsallis distribution function with negative ions

Dust grain charging processes are presented in a non-Maxwellian dusty plasma following the Cairns-Tsallis (q, α)-distribution, whose constituents are the electrons, as well as the positive/negative ions and negatively charged dust grains. For this purpose, we have solved the current balance equation...

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Main Authors: Abid, A.A., Khan, M.Z., Yap, S.L., Terças, H., Mahmood, S.
Format: Article
Published: American Institute of Physics 2016
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/18009/
http://dx.doi.org/10.1063/1.4940329
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spelling my.um.eprints.180092017-10-13T03:07:52Z http://eprints.um.edu.my/18009/ Dust charging processes with a Cairns-Tsallis distribution function with negative ions Abid, A.A. Khan, M.Z. Yap, S.L. Terças, H. Mahmood, S. QC Physics Dust grain charging processes are presented in a non-Maxwellian dusty plasma following the Cairns-Tsallis (q, α)-distribution, whose constituents are the electrons, as well as the positive/negative ions and negatively charged dust grains. For this purpose, we have solved the current balance equation for a negatively charged dust grain to achieve an equilibrium state value (viz., qd = constant) in the presence of Cairns-Tsallis (q, α)-distribution. In fact, the current balance equation becomes modified due to the Boltzmannian/streaming distributed negative ions. It is numerically found that the relevant plasma parameters, such as the spectral indexes q and α, the positive ion-to-electron temperature ratio, and the negative ion streaming speed (U0) significantly affect the dust grain surface potential. It is also shown that in the limit q → 1 the Cairns-Tsallis reduces to the Cairns distribution; for α = 0 the Cairns-Tsallis distribution reduces to pure Tsallis distribution and the latter reduces to Maxwellian distribution for q → 1 and α = 0. American Institute of Physics 2016 Article PeerReviewed Abid, A.A. and Khan, M.Z. and Yap, S.L. and Terças, H. and Mahmood, S. (2016) Dust charging processes with a Cairns-Tsallis distribution function with negative ions. Physics of Plasmas, 23 (1). 013706. ISSN 1070-664X http://dx.doi.org/10.1063/1.4940329 doi:10.1063/1.4940329
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
spellingShingle QC Physics
Abid, A.A.
Khan, M.Z.
Yap, S.L.
Terças, H.
Mahmood, S.
Dust charging processes with a Cairns-Tsallis distribution function with negative ions
description Dust grain charging processes are presented in a non-Maxwellian dusty plasma following the Cairns-Tsallis (q, α)-distribution, whose constituents are the electrons, as well as the positive/negative ions and negatively charged dust grains. For this purpose, we have solved the current balance equation for a negatively charged dust grain to achieve an equilibrium state value (viz., qd = constant) in the presence of Cairns-Tsallis (q, α)-distribution. In fact, the current balance equation becomes modified due to the Boltzmannian/streaming distributed negative ions. It is numerically found that the relevant plasma parameters, such as the spectral indexes q and α, the positive ion-to-electron temperature ratio, and the negative ion streaming speed (U0) significantly affect the dust grain surface potential. It is also shown that in the limit q → 1 the Cairns-Tsallis reduces to the Cairns distribution; for α = 0 the Cairns-Tsallis distribution reduces to pure Tsallis distribution and the latter reduces to Maxwellian distribution for q → 1 and α = 0.
format Article
author Abid, A.A.
Khan, M.Z.
Yap, S.L.
Terças, H.
Mahmood, S.
author_facet Abid, A.A.
Khan, M.Z.
Yap, S.L.
Terças, H.
Mahmood, S.
author_sort Abid, A.A.
title Dust charging processes with a Cairns-Tsallis distribution function with negative ions
title_short Dust charging processes with a Cairns-Tsallis distribution function with negative ions
title_full Dust charging processes with a Cairns-Tsallis distribution function with negative ions
title_fullStr Dust charging processes with a Cairns-Tsallis distribution function with negative ions
title_full_unstemmed Dust charging processes with a Cairns-Tsallis distribution function with negative ions
title_sort dust charging processes with a cairns-tsallis distribution function with negative ions
publisher American Institute of Physics
publishDate 2016
url http://eprints.um.edu.my/18009/
http://dx.doi.org/10.1063/1.4940329
_version_ 1643690583872503808
score 13.211869

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