TITLE

Comment on the article 'Solitary waves and double layers in an ultra-relativistic degenerate dusty electron-positron-ion plasma' [Phys. Plasmas 19, 033705 (2012)]

AUTHOR(S)
Akbari-Moghanjoughi, M.
PUB. DATE
June 2012
SOURCE
Physics of Plasmas;Jun2012, Vol. 19 Issue 6, p064703
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
More recently, Roy et al. [Phys. Plasmas 19, 033705 (2012)] have investigated the occurrence of nonlinear solitary and double-layers in an ultrarelativistic dusty electron-positron-ion degenerate plasma using a Sagdeev potential method. They have considered a full parametric examination on Mach-number criteria for existence of such nonlinear excitations using the specific degeneracy limits of Chandrasekhar equation of state (EoS) for Fermi-Dirac plasmas. In this comment, we point-out a misleading extension of polytropic EoS to study the Fermi-Dirac relativistically degenerate plasmas.
ACCESSION #
77443036

 

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