Role of anisotropy in the expansion-free plane gravitational collapse

被引：14
|
作者：
Sharif, M. [1 ]
Azam, M. [1 ,2 ]
机构：
[1] Univ Punjab, Dept Math, Lahore 54590, Pakistan
[2] Univ Educ, Div Sci & Technol, Lahore 54590, Pakistan
来源：
GENERAL RELATIVITY AND GRAVITATION | 2014年 / 46卷 / 01期
关键词：
Local anisotropy; Expansion-free fluid; Stability; DYNAMICAL INSTABILITY; STABILITY;
D O I：
10.1007/s10714-013-1647-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we study the instability range of the collapsing fluid bounded by the plane geometry. For this purpose, the expansion-free dynamical equations in Newtonian and post-Newtonian regimes are obtained through perturbation scheme. We investigate the role of pressure anisotropy and energy density inhomogeneity in the instability ranges of expansion-free fluid. It is concluded that the instability regions for the plane geometry turns out to be large than the spherical case.
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页码：1 / 13
页数：13
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