The cosmic microwave background in a globally inhomogeneous universe

Details The cosmic microwave background in a globally inhomogeneous universe The cosmic microwave background in a globally inhomogeneous universe

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.249..126b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 249, March 1, 1991, p. 126-130. Research supported by A

Statistics

Computation

17

Computational Astrophysics, Relic Radiation, Universe, Anisotropy, Approximation, Astronomical Models, Dipole Moments, Inhomogeneity

Scientific paper

A globally inhomogeneous universe is considered in the framework of an approximation scheme for constructing inhomogeneous universes in general relativity. The back-reaction of Newtonian inhomogeneities gives inhomogeneous and anisotropic correction terms to the averaged expansion factor. Dipole and quadrupole moment of the cosmic background radiation in a one-dimensional example are calculated, and a cosmological interpretation of the dipole component is shown to be consistent with the observational upper limits.

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