Quasi-static thermal evolution of compact objects

被引:1
|
作者
Becerra, L. [1 ]
Hernandez, H. [2 ]
Nunez, L. A. [1 ,2 ]
机构
[1] Univ Ind Santander, Fac Ciencias, Escuela Fis, Bucaramanga 680002, Colombia
[2] Univ Los Andes, Fac Ciencias, Dept Fis, Merida 5101, Venezuela
关键词
EQUATION-OF-STATE; TRANSIENT RELATIVISTIC THERMODYNAMICS; GENERAL-RELATIVITY; ANISOTROPIC SPHERES; KINETIC-THEORY; IRREVERSIBLE THERMODYNAMICS; HYDROSTATIC EQUILIBRIUM; GRAVITATIONAL COLLAPSE; RADIATING SPHERES; FLUID SPHERES;
D O I
10.1139/cjp-2014-0645
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study under what conditions the thermal peeling is present for dissipative local and quasi-local anisotropic spherical matter configurations. Thermal peeling occurs when different signs in the velocity of fluid elements appear, giving rise to the splitting of the matter configuration. The evolution is considered in the quasi-static approximation and the matter contents are radiant, anisotropic (unequal stresses) spherical local, and quasi-local fluids. The heat flux and the associated temperature profiles are described by causal thermodynamics consistent with this approximation. It is found that both types of configurations can exhibit thermal peeling when most of the radiated energy emerges from the first half of the distribution, and thermal peeling appears to be associated with extreme astrophysical scenarios (highly relativistic and very energetic gravitational system).
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页码:920 / 934
页数:15
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