Calculating the Hubble diagram by perturbation theory
Cosmology and Nongalactic Astrophysics
2010-02-25 v1
Abstract
The effect of density fluctuations upon light propagation is calculated perturbatively in a matter dominated irrotational universe. The starting point is the perturbed metric (second order in the perturbation strength), while the output is the Hubble diagram. Density fluctuations cause this diagram to broaden to a strip. Moreover, the shift of the diagram mimics accelerated expansion.
Cite
@article{arxiv.1002.4605,
title = {Calculating the Hubble diagram by perturbation theory},
author = {Gyula Bene},
journal= {arXiv preprint arXiv:1002.4605},
year = {2010}
}