Nonlinear electrostatic excitations in magnetized dense plasmas with nonrelativistic and ultrarelativistic degenerate electrons
Abstract
Linear and nonlinear electrostatic waves in magnetized dense electronion plasmas are studied with nonrelativistic and ultrarelativistic degenerate and singly, doubly charged helium (He{sup +}, He{sup ++}) and hydrogen (H{sup +}) ions, respectively. The dispersion relation of electrostatic waves in magnetized dense plasmas is obtained under both the energy limits of degenerate electrons. Using reductive perturbation method, the ZakharovKuznetsov equation for nonlinear propagation of electrostatic solitons in magnetized dense plasmas is derived for both nonrelativistic and ultrarelativistic degenerate electrons. It is found that variations in plasma density, magnetic field intensity, different mass, and charge number of ions play significant role in the formation of electrostatic solitons in magnetized dense plasmas. The numerical plots are also presented for illustration using the parameters of dense astrophysical plasma situations such as white dwarfs and neutron stars exist in the literature. The present investigation is important for understanding the electrostatic waves propagation in the outer periphery of compact stars which mostly consists of hydrogen and helium ions with degenerate electrons in dense magnetized plasmas.
 Authors:
 Theoretical Physics Division (TPD), PINSTECH, P.O. Nilore, Islamabad 44000 (Pakistan)
 Publication Date:
 OSTI Identifier:
 22218333
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; DISPERSION RELATIONS; ELECTRONS; EXCITATION; HELIUM IONS; HYDROGEN IONS 1 PLUS; MAGNETIC FIELDS; NEUTRON STARS; NONLINEAR PROBLEMS; PERTURBATION THEORY; PLASMA DENSITY; PLASMA WAVES; RELATIVISTIC PLASMA; SOLITONS; VARIATIONS; WHITE DWARF STARS
Citation Formats
Mahmood, S., Sadiq, Safeer, and Haque, Q. Nonlinear electrostatic excitations in magnetized dense plasmas with nonrelativistic and ultrarelativistic degenerate electrons. United States: N. p., 2013.
Web. doi:10.1063/1.4843615.
Mahmood, S., Sadiq, Safeer, & Haque, Q. Nonlinear electrostatic excitations in magnetized dense plasmas with nonrelativistic and ultrarelativistic degenerate electrons. United States. doi:10.1063/1.4843615.
Mahmood, S., Sadiq, Safeer, and Haque, Q. Sun .
"Nonlinear electrostatic excitations in magnetized dense plasmas with nonrelativistic and ultrarelativistic degenerate electrons". United States.
doi:10.1063/1.4843615.
@article{osti_22218333,
title = {Nonlinear electrostatic excitations in magnetized dense plasmas with nonrelativistic and ultrarelativistic degenerate electrons},
author = {Mahmood, S. and Sadiq, Safeer and Haque, Q.},
abstractNote = {Linear and nonlinear electrostatic waves in magnetized dense electronion plasmas are studied with nonrelativistic and ultrarelativistic degenerate and singly, doubly charged helium (He{sup +}, He{sup ++}) and hydrogen (H{sup +}) ions, respectively. The dispersion relation of electrostatic waves in magnetized dense plasmas is obtained under both the energy limits of degenerate electrons. Using reductive perturbation method, the ZakharovKuznetsov equation for nonlinear propagation of electrostatic solitons in magnetized dense plasmas is derived for both nonrelativistic and ultrarelativistic degenerate electrons. It is found that variations in plasma density, magnetic field intensity, different mass, and charge number of ions play significant role in the formation of electrostatic solitons in magnetized dense plasmas. The numerical plots are also presented for illustration using the parameters of dense astrophysical plasma situations such as white dwarfs and neutron stars exist in the literature. The present investigation is important for understanding the electrostatic waves propagation in the outer periphery of compact stars which mostly consists of hydrogen and helium ions with degenerate electrons in dense magnetized plasmas.},
doi = {10.1063/1.4843615},
journal = {Physics of Plasmas},
number = 12,
volume = 20,
place = {United States},
year = {Sun Dec 15 00:00:00 EST 2013},
month = {Sun Dec 15 00:00:00 EST 2013}
}

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