The Fluctuations of the Cosmic Microwave Background for a Compact Hyperbolic Universe
Astrophysics
2009-10-31 v2
Abstract
The fluctuations of the cosmic microwave background (CMB) are investigated for a small open universe, i.e., one which is periodically composed of a small fundamental cell. The evolution of initial metric perturbations is computed using the first 749 eigenmodes of the fundamental cell in the framework of linear perturbation theory using a mixture of radiation and matter. The fluctuations of the CMB are investigated for various density parameters Omega_0 taking into account the full Sachs-Wolfe effect. The corresponding angular power spectrum C_l is compared with recent experiments.
Keywords
Cite
@article{arxiv.astro-ph/9903032,
title = {The Fluctuations of the Cosmic Microwave Background for a Compact Hyperbolic Universe},
author = {Ralf Aurich},
journal= {arXiv preprint arXiv:astro-ph/9903032},
year = {2009}
}
Comments
The paper can also be obtained at http://www.uni-ulm.de/~raurich/Orbifold/tetraeder.html (There are also animations of some eigenmodes.)