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Comment on ‘Phase plane analysis of small amplitude electron-acoustic supernonlinear and nonlinear waves in magnetized plasmas’ (2020 Physica Scripta 95 105604)
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Abstract
The recent paper by Tamang, Abdikian and Saha ((2020)
Physica Scripta
95
105 604), about weakly nonlinear electron-acoustic waves in magnetized plasmas where the hot electrons have a Tsallis nonextensive distribution, is unfortunately marred by serious deficiencies. The proper limits imposed by a one-dimensional Tsallis distribution and by a reductive perturbation treatment were not taken into account correctly. Consequently, some results were unphysical. Why in a magnetized plasma the hot electrons should be described by a one-dimensional distribution is not discussed.
Title: Comment on ‘Phase plane analysis of small amplitude electron-acoustic supernonlinear and nonlinear waves in magnetized plasmas’ (2020
Physica Scripta
95
105604)
Description:
Abstract
The recent paper by Tamang, Abdikian and Saha ((2020)
Physica Scripta
95
105 604), about weakly nonlinear electron-acoustic waves in magnetized plasmas where the hot electrons have a Tsallis nonextensive distribution, is unfortunately marred by serious deficiencies.
The proper limits imposed by a one-dimensional Tsallis distribution and by a reductive perturbation treatment were not taken into account correctly.
Consequently, some results were unphysical.
Why in a magnetized plasma the hot electrons should be described by a one-dimensional distribution is not discussed.
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