Abstract
In the present investigation, the characteristics of ion-acoustic solitons in a plasma consisting of inertial ions, hot electrons obeying Vasyliunas–Cairns (VC) distribution and embedded with an electron beam have been studied. Using reductive perturbation technique, the KP equation and its solution have been derived. The negative potential ion-acoustic solitons are observed in the presence of an electron beam. The combined effects of various plasma parameters, such as electron beam density, beam velocity, superthermality and nonthermality parameters of electrons have been analysed on the characteristics of ion-acoustic solitons.
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Acknowledgements
The authors have presented a part of this paper in two days conference on ‘Chandra’s Contribution in Plasma Astrophysics’ on the 111th Birth Ceremony of Prof. S. Chandrasekhar held during 19–20 October 2021 in School of Physical Sciences, JNU, New Delhi, India. The financial support for this work is highly acknowledged from Department of Science and Technology, Government of India, New Delhi, under DST-SERB project no. CRG/2019/003988.
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This article is part of the Special Issue on "Waves, Instabilities and Structure Formation in Plasmas".
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SAINI, N.S., KAUR, M. & SINGLA, S. Ion-acoustic nonlinear structures in a non-Maxwellian plasma in the presence of an electron beam. J Astrophys Astron 43, 65 (2022). https://doi.org/10.1007/s12036-022-09851-6
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DOI: https://doi.org/10.1007/s12036-022-09851-6