Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-25T17:19:06.552Z Has data issue: false hasContentIssue false

Stochastic Instability in Gravitating Medium

Published online by Cambridge University Press:  12 April 2016

Irina K. Rozgacheva*
Affiliation:
Sternberg State Astro Inst., 13 Univer. Prospect, 119899 Moscow V-234, Russia

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Our Universe has probably a space-time with a humpy metric. The space-time has nondegenerate (unequal) geodesics. The Universe is weakly inhomogeneous. The nonstationary inhomogeneities (humpies) of gravitational field change the redshift of any astronomical object - change brightness (Sachs-Wolfe’s effect), and change trajectories of photons. The latter effect is considered here. It is found that a theorem on the null geodesics are instable in the Universe with positive density contrasts. Photons must lose an information of their initial directions of propagation. So such radiation as the Microwave Background Radiation must seem uniform in the Universe.

Type
Part II Ergodic and Stochastic Motion
Copyright
Copyright © Nova Science Publishers 1993