A GENERALIZATION OF THE CONCEPT OF ADIABATIC INDEX FOR NONADIABATIC SYSTEMS

被引:14
作者
BARRETO, W
HERRERA, L
SANTOS, N
机构
[1] CENT UNIV VENEZUELA,FAC CIENCIAS,DEPT FIS,CARACAS,VENEZUELA
[2] OBSERV NACL,CONSELHO NACL PESQUISAS,DEPT ASTRON,RIO DE JANEIRO,BRAZIL
关键词
D O I
10.1007/BF00643395
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The concept of adiabatic index, measuring the stiffness of the equation of state for adiabatic systems, and which plays a fundamental role in the study of gravitational collapse, is extended to systems emitting and/or absorbing energy. In the light of the new definition, the collapse of two models of radiating, general relativistic spheres is analyzed in detail, at different regimes of radiation transport. The conspicuous role played by the new variable is clearly exhibited.
引用
收藏
页码:271 / 290
页数:20
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