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How Anisotropic is our Universe?

Abstract:

Large-scale cosmic microwave background anisotropies in homogeneous, globally anisotropic cosmologies are investigated. We perform a statistical analysis in which the four-year data from the Cosmic Background Explorer satellite is searched for the specific anisotropy patterns predicted by these models and thereby set definitive upper limits on the amount of shear, $(\sigma/H)_0$ and vorticity, $(\omega/H)_0$, which are orders of magnitude stronger than previous constraints. We comment on how ...

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Publisher copy:
10.1103/PhysRevLett.77.2883

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Journal:
Phys.Rev.Lett.
Volume:
77
Pages:
2883-2886
Publication date:
1996-05-20
DOI:
URN:
uuid:cb43f837-d9f9-4ef8-9cd3-2af7bd83491d
Source identifiers:
208124
Local pid:
pubs:208124
Keywords:

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