Averaging Hypotheses in Newtonian Cosmology
Astrophysics
2008-02-03 v2
Abstract
Average properties of general inhomogeneous cosmological models are discussed in the Newtonian framework. It is shown under which circumstances the average flow reduces to a member of the standard Friedmann--Lema\^\i tre cosmologies. Possible choices of global boundary conditions of inhomogeneous cosmologies as well as consequences for the interpretation of cosmological parameters are put into perspective.
Keywords
Cite
@article{arxiv.astro-ph/9512107,
title = {Averaging Hypotheses in Newtonian Cosmology},
author = {T. Buchert},
journal= {arXiv preprint arXiv:astro-ph/9512107},
year = {2008}
}
Comments
7 pages, uuencoded gzipped ps-file, 68 kByte Proc. ``Mapping, Measuring and Modelling the Universe'', Valencia 1995, eds.: P. Coles, V. Martinez, M. Pons, to be published by ASP >>>changes of interpretation in Sects. 2.2 and 2.4