Propagation of Electrostatic Waves in an Ultra-Relativistic Dense Dusty Electron-Positron-Ion Plasma

• 作者: A. A. Mamun M. S. Zobaer N. Roy
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: Degenerate PLASMA Ultra-Relativistic Limit Solitary Waves K-dV Equation PSEUDO-POTENTIAL Method
• 年，卷（期）: 2012,（8）
• 页码范围: 850-855
• 页数: 6页
• 分类号: O1

摘要

The nonlinear propagation of waves (specially solitary waves) in an ultra-relativistic degenerate dense plasma (containing ultra-relativistic degenerate electrons and positrons, cold, mobile, inertial ions, and negatively charged static dust) have been investigated by the reductive perturbation method. The linear dispersion relation and Korteweg de-Vries equation have been derived whose numerical solutions have been analyzed to identify the basic features of electrostatic solitary structures that may form in such a degenerate dense plasma. The existence of solitary structures has been also verified by employing the pseudo-potential method. The implications of our results in astrophysical compact objects have been briefly discussed.