TITLE:
Nonlinear Propagation of Dust-Ion-Acoustic Waves in a Degenerate Dense Plasma
AUTHORS:
M. S. Zobaer, N. Roy, A. A. Mamun
KEYWORDS:
Degenerate Plasma; Dust-Ion-Acoustic Waves; K-dV Equation; Burzer’s Equation
JOURNAL NAME:
Journal of Modern Physics,
Vol.3 No.7,
July
18,
2012
ABSTRACT: Nonlinear propagation of dust-ion-acoustic waves in a degenerate dense plasma (with the constituents being degenerate, for both the limits non-relativistic or ultra-relativistic) have been investigated by the reductive perturbation method. The Korteweg de-Vries (K-dV) equation and Burger’s equation have been derived, and the numerical solutions of those equations have been analyzed to identify the basic features of electrostatic solitary and shock structures that may form in such a degenerate dense plasma. The implications of our results in compact astrophysical objects, particularly, in white dwarfs, have been briefly discussed.