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Effect of non-thermal electrons on ion-acoustic dressed solitons in unmagnetised plasmas

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Abstract

Nonlinear propagation of an ion-acoustic dressed soliton is studied in unmagnetised plasma consisting of ion, positron and non-thermal electron. The exact soliton solution is derived using the reductive perturbation method (RPM) with the help of renormalisation procedure. This exact solution reduces to the dressed soliton solution when Mach number is expanded in terms of soliton velocity. The effects of non-thermal electrons, soliton velocity and Mach number on the characteristics (amplitude, width and product of amplitude and square of width) of the KdV soliton, core structure, dressed soliton and exact soliton are discussed in detail.

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Acknowledgements

Author J K Chawla would like to thank R S Tiwari for useful discussions.

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Authors and Affiliations

  1. Department of Physics, Govt. Girls College Banswara, Banswara, 307 001, India

    J K Chawla

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  1. J K Chawla
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Chawla, J.K. Effect of non-thermal electrons on ion-acoustic dressed solitons in unmagnetised plasmas. Pramana - J Phys 95, 48 (2021). https://doi.org/10.1007/s12043-021-02084-2

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  • DOI: https://doi.org/10.1007/s12043-021-02084-2

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