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Gravitational perturbation of the cosmic background radiation by density concentrations. [Swiss cheese model universe]

Journal Article:

Abstract

The gravitational effect of density concentrations in the Universe on the temperature distribution of the cosmic blackbody background radiation is considered, using the Swiss cheese model universe, and supposing each hole to contain an expanding, homogeneous dust sphere at its centre. The temperature profile across such a hole differs in an essential way from that obtained earlier by Rees et al (Nature; 217:511 (1968)). The evolution of this effect with the expansion of the Universe is considered for 'relatively increasing' density contrasts emerging from the same initial singular state as the rest of the Universe. This effect becomes comparable to the bremsstrahlung and Compton effects on the isotropy of the background radiation for masses of about 10/sup 19/ times the mass of the sun, and exceeds these other effects as about Msup(2/3) for larger masses. If large-scale condensations of the Universe can be found for z approximately 1 to 5, delineated, maybe, by the clustering of quasars, etc., then this effect may be observable.
Authors:
Dyer, C C [1] 
  1. Cambridge Univ. (UK). Inst. of Theoretical Astronomy
Publication Date:
May 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-07-261987; EDB-77-033253
Resource Relation:
Journal Name: Mon. Not. R. Astron. Soc.; (United Kingdom); Journal Volume: 175:2
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMIC RADIATION; GRAVITATIONAL FIELDS; BACKGROUND RADIATION; COSMOLOGICAL MODELS; DISTURBANCES; MATTER; SPATIAL DISTRIBUTION; TEMPERATURE DEPENDENCE; UNIVERSE; VARIATIONS; DISTRIBUTION; IONIZING RADIATIONS; MATHEMATICAL MODELS; RADIATIONS; 640101* - Astrophysics & Cosmology- Cosmic Radiation
OSTI ID:
7133049
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: MNRAA
Submitting Site:
INIS
Size:
Pages: 429-447
Announcement Date:

Journal Article:

Citation Formats

Dyer, C C. Gravitational perturbation of the cosmic background radiation by density concentrations. [Swiss cheese model universe]. United Kingdom: N. p., 1976. Web.
Dyer, C C. Gravitational perturbation of the cosmic background radiation by density concentrations. [Swiss cheese model universe]. United Kingdom.
Dyer, C C. 1976. "Gravitational perturbation of the cosmic background radiation by density concentrations. [Swiss cheese model universe]." United Kingdom.
@misc{etde_7133049,
title = {Gravitational perturbation of the cosmic background radiation by density concentrations. [Swiss cheese model universe]}
author = {Dyer, C C}
abstractNote = {The gravitational effect of density concentrations in the Universe on the temperature distribution of the cosmic blackbody background radiation is considered, using the Swiss cheese model universe, and supposing each hole to contain an expanding, homogeneous dust sphere at its centre. The temperature profile across such a hole differs in an essential way from that obtained earlier by Rees et al (Nature; 217:511 (1968)). The evolution of this effect with the expansion of the Universe is considered for 'relatively increasing' density contrasts emerging from the same initial singular state as the rest of the Universe. This effect becomes comparable to the bremsstrahlung and Compton effects on the isotropy of the background radiation for masses of about 10/sup 19/ times the mass of the sun, and exceeds these other effects as about Msup(2/3) for larger masses. If large-scale condensations of the Universe can be found for z approximately 1 to 5, delineated, maybe, by the clustering of quasars, etc., then this effect may be observable.}
journal = {Mon. Not. R. Astron. Soc.; (United Kingdom)}
volume = {175:2}
journal type = {AC}
place = {United Kingdom}
year = {1976}
month = {May}
}