Magnetosonic shock waves in dense astrophysical electron-positron-ion plasmas

被引：10
|
作者：
Hussain, S. [1 ,2 ]
Mahmood, S. [1 ,2 ]
Pasqua, A. [3 ]
机构：
[1] PINSTECH, TPPD, Islamabad 44000, Pakistan
[2] PIEAS, DPAM, Islamabad 44000, Pakistan
[3] Univ Trieste, Dept Phys, I-34127 Trieste, Italy
来源：
PHYSICS LETTERS A | 2013年 / 377卷 / 34-36期
关键词：
Quantum plasmas; Magnetohydrodynamics; Shock waves; Korteweg-de Vries-Burgers; Electron-positron-ion; Compact stars; EQUATIONS;
D O I：
10.1016/j.physleta.2013.06.010
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Multifluid quantum magnetohydrodynamic model (QMHD) is used to investigate small but finite amplitude magnetosonic shock waves in dense) electron-positron-ion (e-p-i) plasmas. The Korteweg-de Vries-Burgers (KdVB) equation is derived by using reductive perturbation method. It is noticed that variations in the positron density modify the profile of magnetosonic shocks in dense e-p-i plasmas significantly. The numerical results are also presented by taking into account the dense plasma parameters from published literature of astrophysical conditions, in compact stars. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：2105 / 2110
页数：6
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