Preprints
https://doi.org/10.5194/npg-2023-25
https://doi.org/10.5194/npg-2023-25
08 Jan 2024
 | 08 Jan 2024
Status: this preprint is currently under review for the journal NPG.

The dynamic of ion Bernstein-Greene-Kruskal holes in plasmas with regularized κ-distributed electrons

Qiu Ping Lu, Cai Ping Wu, Hui Chen, Xiao Chang Chen, and San Qiu Liu

Abstract. The dynamics of ion holes (IHs) in plasmas where electrons follow the regularized Kappa distribution (RKD) and ions follow the Maxwellian distribution (MD) are investigated based on the Bernstein-Greene-Kruskal (BGK) method. The results show that the depth of the IHs, the allowed combination of width and amplitude to support physically plausible IHs equilibrium depend on the spectral index κe and cut-off parameter α of the distribution function. That is, with increasing values of the spectral index κe and cut-off parameter α, the IHs formed become deeper and allow a larger permissible region of width and amplitude. In contrast, with decreasing values of the spectral index κe and cut-off parameter α, the IHs formed become shallower and have a smaller allowed range of width and amplitude. The present work may contribute to the comprehension of the nonlinear structures in plasmas system where non-thermal particles are found.

Qiu Ping Lu, Cai Ping Wu, Hui Chen, Xiao Chang Chen, and San Qiu Liu

Status: open (until 04 Mar 2024)

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  • RC1: 'Comment on npg-2023-25', Anonymous Referee #1, 15 Jan 2024 reply
Qiu Ping Lu, Cai Ping Wu, Hui Chen, Xiao Chang Chen, and San Qiu Liu
Qiu Ping Lu, Cai Ping Wu, Hui Chen, Xiao Chang Chen, and San Qiu Liu

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Short summary
As spectral index and cut-off parameter increase, the deeper ion holes are formed and the region where the ion holes exist becomes smaller. On the contrary, the shallower ion holes are formed and the region where the ion holes exist becomes larger when spectral index and cut-off parameter decrease.