Limits on anisotropy and inhomogeneity from the cosmic background radiation - INSPIRE

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Limits on anisotropy and inhomogeneity from the cosmic background radiation

Roy Maartens
(
- Portsmouth U. and
- Witwatersrand U.
)
,
George F.R. Ellis
(
- Cape Town U.
)
,
William R. Stoeger, S.J.
(
- Cape Town U. and
- Arizona U., Astron. Dept. - Steward Observ.
)

Sep, 1994

23 pages

Published in:

Phys.Rev.D 51 (1995) 1525-1535

e-Print:

astro-ph/9501016 [astro-ph]

DOI:

10.1103/PhysRevD.51.1525

View in:

ADS Abstract Service

reference search74 citations

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Abstract: (arXiv)

We consider directly the equations by which matter imposes anisotropies on freely propagating background radiation, leading to a new way of using anisotropy measurements to limit the deviations of the Universe from a Friedmann-Robertson-Walker (FRW) geometry. This approach is complementary to the usual Sachs-Wolfe approach: the limits obtained are not as detailed, but they are more model-independent. We also give new results about combined matter-radiation perturbations in an almost-FRW universe, and a new exact solution of the linearised equations.

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Figures(0)

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