Abstract
The linear dispersion for ion acoustic waves (IAWs) including the effects of dust charge fluctuation and electron nonextensivity is derived. It is shown that the presence of nonextensive electrons modifies the charge fluctuation behavior, leading to the dissipative and instability for IAWs. The dependence of the frequency and damping rate of IAWs on the electron nonextensive parameter q is closely to the dust density since it greatly affects the dust charge fluctuation.
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ACKNOWLEDGMENTS
We would like to thank the anonymous referee for reading and commenting on the manuscript and for important suggestions on the work.
Funding
This work was supported by the International S&T Cooperation Program of China (2015DFA61800), Jiangxi Province Key Laboratory of Fusion and Information Control (Grant No.20171BCD40005), and the science and technology projects of Department of Education in Jiangxi Province (GJJ160196).
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Chen, X.C., Liu, S.Q. & Liu, Y. Effect of Dust Charge Fluctuation on Ion Acoustic Waves in a Plasma with Nonextensive Electrons. Plasma Phys. Rep. 45, 714–721 (2019). https://doi.org/10.1134/S1063780X19070031
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DOI: https://doi.org/10.1134/S1063780X19070031