Nonlinear propagation of ion-acoustic waves in a degenerate dense plasma

被引：11
作者：
Masud, M. M. [1 ]
Mamun, A. A. [2 ]
机构：
[1] Bangladesh Univ Engn & Technol, Dept Phys, Dhaka, Bangladesh
[2] Jahangirnagar Univ, Dept Phys, Dhaka 1342, Bangladesh
来源：
PRAMANA-JOURNAL OF PHYSICS | 2013年 / 81卷 / 01期
关键词：
Solitary wave; degenerate plasma; dense plasma; KdV equation;
D O I：
10.1007/s12043-013-0551-2
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Nonlinear propagation of ion-acoustic (IA) waves in a degenerate dense plasma (with all the constituents being degenerate, for both the non-relativistic or ultrarelativistic cases) have been investigated by the reductive perturbation method. The linear dispersion relation and Korteweg-de Vries (KdV) equation have been derived, and the numerical solutions of KdV equation have been analysed to identify the basic features of electrostatic solitary structures that may form in such a degenerate dense plasma. The implications of our results in compact astrophysical objects, particularly, in white dwarfs and neutron stars, have been briefly discussed.
引用
收藏
页码：169 / 176
页数：8
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