Slow test charge response in a dusty plasma with Kappa distributed electrons and ions

Ali, S and Eliasson, B (2017) Slow test charge response in a dusty plasma with Kappa distributed electrons and ions. Physica Scripta, 92 (8). 084003. ISSN 0031-8949 (https://doi.org/10.1088/1402-4896/aa7c09)

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Abstract

The electrostatic potential around a slowly moving test charge is studied in a dusty plasma where the ions and electrons follow a powerlaw Kappa distribution in velocity space. A test charge moving with a speed much smaller than the dust thermal speed gives rise to a short-scale Debye-Hueckel potential as well as a long-range far-field potential decreasing as inverse cube of the distance to the test charge along the propagation direction. The potentials are significantly modified in the presence of high-energy tails, modeled by lower spectral indices in the ion and electron Kappa distribution functions. Plasma parameters relevant to laboratory dusty plasmas are discussed.

ORCID iDs

Ali, S and Eliasson, B ORCID logoORCID: https://orcid.org/0000-0001-6039-1574;
  • Item type:Article
    ID code:61132
    Dates:
    Date
    Event
    17 July 2017
    Published
    27 June 2017
    Accepted
    31 May 2017
    Submitted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:28 Jun 2017 13:20
    Last modified:11 Nov 2024 11:43
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/61132
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