scholarly journals Comment on “Kinetic effects on the parametric decays of circularly polarized electromagnetic waves in a relativistic pair plasma” [Phys. Plasmas 11, 3497 (2004)]

2004 ◽  
Vol 11 (10) ◽  
pp. 4882-4882 ◽  
Author(s):  
L. Stenflo ◽  
P. K. Shukla
Keyword(s):  
Electromagnetic Waves ◽  
Plasma Phys ◽  
Circularly Polarized ◽  
Pair Plasma ◽  
Kinetic Effects ◽  
Relativistic Pair

Comment on ‘Propagation of solitary waves and shock wavelength in the pair plasma (J. Plasma Phys. 78, 525–529, 2012)’

2014 ◽  
Vol 80 (3) ◽  
pp. 513-516
Author(s):  
Frank Verheest
Keyword(s):  
Shock Wave ◽  
Solitary Wave ◽  
Solitary Waves ◽  
Plasma Phys ◽  
Theoretical Underpinning ◽  
Pair Plasma ◽  
Electrons And Positrons ◽  
Small Dissipation ◽  
Pseudopotential Approach ◽  
Wave Properties

In a recent paper ‘Propagation of solitary waves and shock wavelength in the pair plasma (J. Plasma Phys. 78, 525–529, 2012)’, Malekolkalami and Mohammadi investigate nonlinear electrostatic solitary waves in a plasma comprising adiabatic electrons and positrons, and a stationary ion background. The paper contains two parts: First, the solitary wave properties are discussed through a pseudopotential approach, and then the influence of a small dissipation is intuitively sketched without theoretical underpinning. Small dissipation is claimed to lead to a shock wave whose wavelength is determined by linear oscillator analysis. Unfortunately, there are errors and inconsistencies in both the parts, and their combination is incoherent.

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