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Comment on ‘Electron acoustic super solitary waves in a magnetized plasma’, J. Plasma Phys. 84, 905840406 (2018)

Published online by Cambridge University Press:  15 February 2019

Frank Verheest Open the ORCID record for Frank Verheest [Opens in a new window]  and
Manfred A. Hellberg Open the ORCID record for Manfred A. Hellberg [Opens in a new window]
Frank Verheest*
Affiliation:
Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281, B–9000 Gent, Belgium School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4000, South Africa
Manfred A. Hellberg
Affiliation:
School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4000, South Africa
*
†Email address for correspondence: frank.verheest@ugent.be
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Abstract

The plasma model used in a recent paper by Kamalam et al. (J. Plasma Phys., vol. 84, 2018, 905840406) assumes a Boltzmann description for two hot ion species, in the presence of two adiabatic (fluid) electron species, for the study of obliquely propagating acoustic-type nonlinear solitary waves with respect to a static magnetic field. We argue that the assumption of Boltzmann distributions for the hot ions is incorrect, thus invalidating their conclusions, in particular about the possible occurrence of supersolitons in magnetized plasmas.

Keywords

plasma nonlinear phenomena
Type
Research Article
Information
Journal of Plasma Physics , Volume 85 , Issue 1 , February 2019 , 905850111
Copyright
© Cambridge University Press 2019 

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References

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