Cosmological parameters are dressed

Details Cosmological parameters are dressed Cosmological parameters are dressed

2002-10-15

arxiv.org/abs/gr-qc/0210045v1

Phys.Rev.Lett.90:031101,2003

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LateX, PRLstyle, 4 pages; submitted to PRL

Scientific paper

10.1103/PhysRevLett.90.031101

In the context of the averaging problem in relativistic cosmology, we provide a key to the interpretation of cosmological parameters by taking into account the actual inhomogeneous geometry of the Universe. We discuss the relation between `bare' cosmological parameters determining the cosmological model, and the parameters interpreted by observers with a ``Friedmannian bias'', which are `dressed' by the smoothed-out geometrical inhomogeneities of the surveyed spatial region.

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