Light propagation in a universe with spatial inhomogeneities

被引：7

作者：

Lamburt, V ^{[1
]}

Sokoloff, D ^{[1
]}

Tutubalin, V ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow, Russia

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2005年 / 298卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

light propagation; universe; space curvature; random media;

D O I：

10.1007/s10509-005-5831-y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A light propagation in a universe which is homogeneous only in average systematically differs from a light propagation in a strictly homogeneous Universe. We demonstrate a link between this effect and the general theory of transport phenomenon in random media. The effective spatial curvature of a universe which is homogeneous only in average is introduced. This curvature is governing a light propagation in such universe. We show that the effective spatial curvature is lower than the average curvature. It implies that a universe with critical mean density looks like a space with negative curvature.

引用

页码：409 / 418

页数：10

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