Large-scale homogeneity of the universe measured by the microwave background

Details Large-scale homogeneity of the universe measured by the microwave background Large-scale homogeneity of the universe measured by the microwave background

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.319..751m&link_type=abstract

Nature (ISSN 0028-0836), vol. 319, Feb. 27, 1986, p. 751-753. CNR-NSF-supported research.

Mathematics

Logic

10

Big Bang Cosmology, Homogeneity, Relic Radiation, Universe, Background Radiation, Centimeter Waves, Isotropy, Mass Distribution, Microwave Radiometers

Scientific paper

The authors report measurements of the isotropy of the cosmic-microwave background at a wavelength of 3 cm. At the 95% confidence level, the results restrict departures from isotropy to <5 - 7×10-4 on angular scales of ≡2 - 10°. The angular scale of these observations is of particular cosmological significance because regions of size ≡1° and above were not causally connected at the epoch of last scattering, at least in conventional big-bang models.

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