Large Scale Cosmological Inhomogeneities, Inflation and Acceleration Without Dark Matter
Abstract
We describe the universe as a local, inhomogeneous spherical bubble embedded in a flat matter dominated FLRW universe. Generalized exact Friedmann equations describe the expansion of the universe and an early universe inflationary de Sitter solution is obtained. A non-perturbative expression for the deceleration parameter q is derived that can possibly describe the acceleration of the universe without dark energy, due to the effects associated with very long wave length super-horizon inflationary perturbations. The suggestion by Kolbe et al. [9] that long wave length super-horizon inflationary modes can affect a local observable through inhomogeneities is considered in the light of our exact inhomogeneous model.
Keywords
Cite
@article{arxiv.astro-ph/0504004,
title = {Large Scale Cosmological Inhomogeneities, Inflation and Acceleration Without Dark Matter},
author = {J. W. Moffat},
journal= {arXiv preprint arXiv:astro-ph/0504004},
year = {2007}
}
Comments
10 pages, Latex file, no figures