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

  title={Large-scale homogeneity of the Universe measured by the microwave background},
  author={N. Mandolesi and P. Calzolari and S. Cortiglioni and F. Delpino and G. Sironi and P. Inzani and G. Deamici and J. Solheim and L. Berger and R. Partridge and P. L. Martenis and C. H. Sangree and R. C. Harvey},
  • N. Mandolesi, P. Calzolari, +10 authors R. C. Harvey
  • Published 1986
  • Physics
  • Nature
  • The isotropy of the cosmic-microwave background is a measure of the homogeneity of the Universe at the epoch of last scattering, conventionally taken to be the epoch of recombination of the primeval plasma at a redshift zs ∼1,000. Here we report measurements of the isotropy at a wavelength of 3 cm. At the 95% confidence level, our results restrict departures from isotropy to < 5–7×10−4 on angular scales of ∼2−10°. The angular scale of our observations is of particular cosmological significance… CONTINUE READING
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