Comment on 'Electron acoustic super solitary waves in a magnetized plasma', J. Plasma Phys. 84, 905840406 (2018). (February 2019)

• Record Type: Journal Article
• Authors: Verheest, Frank; Hellberg, Manfred A.
• Is Part Of: Journal of plasma physics. Volume 85:Number 1(2019)
• Publication Date: 2019-02
• Subjects: plasma nonlinear phenomena; Plasma (Ionized gases) -- Periodicals; 530.4405
• DOI: 10.1017/S0022377819000035
• Languages: English
• ISSNs: 0022-3778

Abstract

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.