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Solar wind interaction with dusty plasma produces electrostatic instabilities and solitons

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Abstract

It is shown that the solar wind interaction with dusty plasma in planetary magnetospheres gives rise to electrostatic instabilities and solitary structures. Non-Maxwellian electrons increase the growth rate of shear flow instability and reduce the amplitude of solitary pulses formed by the modified dust ion acoustic wave (mDIAW) in nonlinear regime. Dust number density plays the similar role. The kappa (\(\kappa \)) and Cairns distribution functions are used to take into account the role of non-Maxwellian electrons in the presence of stationary dust and flowing ions along the external magnetic field with inhomogeneous velocity. This theoretical model is general and it can be applied to various dusty plasma environments such as interstellar medium, cometary tails and planetary magnetospheres. Here it has been applied to the Saturn’s \(F\)-ring plasma.

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The data reported in this work are available upon reasonable request to the corresponding author.

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Acknowledgements

Authors H. Saleem and S. Ali Shan are grateful to Abdus Salam -International Centre for Theoretical Physics (ICTP) Italy for arranging their visit to the Centre in 2018, where this work was finalized. One of the authors (H. Saleem) is grateful to the Higher Education Commission (HEC) of Pakistan for partial support under NRPU Project No. 5841.

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Saleem, H., Shan, S.A. Solar wind interaction with dusty plasma produces electrostatic instabilities and solitons. Astrophys Space Sci 366, 41 (2021). https://doi.org/10.1007/s10509-021-03939-1

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  • DOI: https://doi.org/10.1007/s10509-021-03939-1

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