On the relativistic anisotropic configurations

The European Physical Journal C

M. Kohandel¹  A. Stepanian²  F. Shojai³ 

[1] Department of Physics and Chemistry, Alzahra University, Tehran, Iran;Department of Physics, University of Tehran, Tehran, Iran;Department of Physics, University of Tehran, Tehran, Iran;Foundations of Physics Group, School of Physics, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran;

关键词: Radial Pressure;    Anisotropy Factor;    Anisotropic Pressure;    Dominant Energy Condition;    Anisotropic Fluid;   

DOI  :  10.1140/epjc/s10052-016-4204-8

来源: Springer

【 摘 要 】

In this paper we study anisotropic spherical polytropes within the framework of general relativity. Using the anisotropic Tolman–Oppenheimer–Volkov equations, we explore the relativistic anisotropic Lane–Emden equations. We find how the anisotropic pressure affects the boundary conditions of these equations. Also we argue that the behavior of physical quantities near the center of star changes in the presence of anisotropy. For constant density, a class of exact solution is derived with the aid of a new ansatz and its physical properties are discussed.

【 授权许可】

CC BY