THE EVOLUTION OF DISCONTINUITIES IN RADIATING SPHERES IN THE DIFFUSION-APPROXIMATION

被引：5
作者：
BARRETO, W
HERRERA, L
NUNEZ, L
机构：
[1] UNIV ORIENTE,DEPT FIS NUCL SUCRE,FIS TEOR LAB,CUMANA,VENEZUELA
[2] CENT UNIV VENEZUELA,FAC CIENCIAS,DEPT FIS,CARACAS,VENEZUELA
[3] UNIV LOS ANDES,FAC CIENCIAS,DEPT FIS,FIS TEOR LAB,MERIDA,VENEZUELA
来源：
ASTROPHYSICAL JOURNAL | 1991年 / 375卷 / 02期
关键词：
DIFFUSION; RELATIVITY; SHOCK WAVES;
D O I：
10.1086/170229
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The evolution of discontinuities in a general relativistic sphere free of singularities is studied. The energy transport mechanism through fluid is diffusive. The distribution of matter is divided by a shock wave front in two regions. The equations of state at both sides of the shock are different, and the solutions are matched on it via the Rankine-Hugoniot conditions. The outer metric joins the Vaidya solution at the boundary surface of the sphere. Exploding models are obtained, and their dynamics are studied using a generalized compressibility coefficient for nonadiabatic systems.
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页码：663 / 673
页数：11
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