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Fluctuations of the Microwave Background Radiation

Published online by Cambridge University Press:  07 February 2017

R. A. Sunyaev
R. A. Sunyaev*
Affiliation:
Space Research Institute USSR Academy of Sciences Moscow, USSR

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Investigations of small scale angular fluctuations and the spectrum of the microwave background radiation is one of the main methods of studying the large scale structure of the Universe. Figure 1 shows the principal stages of the evolution of the Universe. Today we can directly observe galaxies, clusters of galaxies and quasars in the redshift range z ≤ 3.5 by optical, radio and X-ray astronomy. These observations show that significant density perturbations δρ/ρ > 1 are present on mass scales M < 1016 M⊙. the Universe is essentially uniform δρ/ρ < 1 on large scales M ≫ 1016 M⊙.

Type
IV. Observational Evidence for Cosmological Evolution
Information
Symposium - International Astronomical Union , Volume 79: The Large Scale Structure of the Universe , 1978 , pp. 393 - 404
Copyright
Copyright © Reidel 1978 

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