Improved limits on anisotropy and inhomogeneity from the cosmic background radiation

Roy Maartens; George F. R. Ellis; William R. Stoeger

doi:10.1103/PhysRevD.51.5942

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Improved limits on anisotropy and inhomogeneity from the cosmic background radiation

Roy Maartens

George F. R. Ellis

William R. Stoeger

School of Maths, Portsmouth University, Portsmouth PO1 2EG, England
Centre for Nonlinear Studies, Witwatersrand University, 2050 South Africa

Applied Maths Department, University of Cape Town, 7700 South Africa

Applied Maths Department, University of Cape Town, 7700 South Africa Vatican Observatory Research Group, University of Arizona, Tucson, Arizona 85721

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Phys. Rev. D 51, 5942 – Published 15 May, 1995

DOI: https://doi.org/10.1103/PhysRevD.51.5942

Abstract

Recently we presented limits on the deviation of the Universe from a Friedmann-Robertson-Walker form, which are implied directly by anisotropies in the cosmic background radiation, without assuming inflationary or other models of evolution. Here we weaken some of our previous assumptions, ensuring that all assumptions are in principle observational, and obtain improved limits.

References (1)

R. Maartens, G. F. R. Ellis and W. R. Stoeger, Phys. Rev. D 51, 1525 (1995).

[c1] R. Maartens, G. F. R. Ellis and W. R. Stoeger, Phys. Rev. D 51, 1525 (1995).

Physical Review D

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Improved limits on anisotropy and inhomogeneity from the cosmic background radiation

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