EFFECT OF VARIOUS CROSS-SECTION ENERGY DEPENDENCES IN CALCULATIONS OF COSMOLOGICAL VISCOSITY

被引：9

作者：

MATZNER, RA

机构：

[1] Dept. of Physics, The University of Texas, Austin, Tex.

[2] University of Texas at Austin, Austin

来源：

ASTROPHYSICS AND SPACE SCIENCE | 1969年 / 4卷 / 04期

关键词：

D O I：

10.1007/BF00651350

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Einstein Field Equations for homogeneous cosmologies are considered within the viscosity approximation. It is shown that some power laws σ∼Tm (where T is the temperature) for the cross-section σ lead to collisionless behavior near the initial singularity in a 'big bang' model. Under some circumstances one may have two viscous phases, as the cosmic fluid passes from collisionless to collisional to collisionless again, while the universe expands. © 1969 D. Reidel Publishing Company.

引用

页码：459 / &