Scale of Homogeneity of the Universe from WMAP
Astrophysics
2016-08-30 v1
Abstract
We review the physics of the Grishchuck-Zel'dovich effect which describes the impact of large amplitude, super-horizon gravitational field fluctuations on the Cosmic Microwave Background anisotropy power spectrum. Using the latest determination of the spectrum by WMAP, we infer a lower limit on the present length-scale of such fluctuations of 3927 times the cosmological particle horizon (at the 95% confidence level).
Keywords
Cite
@article{arxiv.astro-ph/0309320,
title = {Scale of Homogeneity of the Universe from WMAP},
author = {Patricia G. Castro and Marian Douspis and Pedro G. Ferreira},
journal= {arXiv preprint arXiv:astro-ph/0309320},
year = {2016}
}
Comments
3 pages, 1 figure. Submitted to Phys. Rev. D. Brief Report