Physics
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983sssmp..26..297f&link_type=abstract
Scientia Sinica, Series A - Mathematical, Physical, Astronomical and Technical Sciences (ISSN 0253-5831), vol. 26, March 1983, p
Physics
1
Background Radiation, Cosmology, Density Distribution, Gravitational Fields, Matter (Physics), Scintillation, Angular Correlation, Anisotropy, Inhomogeneity, Universe
Scientific paper
It is noted that the stochastic component in density inhomogeneities of cosmic matter can cause the intensity scintillation of sources at cosmological distances. One of the sources of small anglar anisotropy in the microwave background is this scintillation effect, since the density inhomogeneities in the epoch after the recombination would also contribute to the formation of background anisotropy. This implies that an upper limit for the density inhomogeneities of cosmic matter can be obtained by observing the small angular anisotropy of background radiation. It is shown that if the universe is closed, a strong inhomogeneity has not developed in the distribution of total density (including both visible and invisible matter). It is concluded that the total density distribution even at the present time might be rather homogeneous.
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