Time drift of cosmological redshifts and its variance
Astrophysics
2008-12-18 v2
Abstract
The contribution of cosmological perturbations to the time drift of the cosmological redshift is derived. It is shown that the dominant correction arises from the local acceleration of both the emitter and the observer. The amplitude of this effect is estimated to be of the order of 1% of the drift signal at z=2-4, but can easily be lowered down to 0.1% by using many absorption lines and quasars.
Keywords
Cite
@article{arxiv.0711.1950,
title = {Time drift of cosmological redshifts and its variance},
author = {Jean-Philippe Uzan and Francis Bernardeau and Yannick Mellier},
journal= {arXiv preprint arXiv:0711.1950},
year = {2008}
}
Comments
6 pages, 2 figures. Fig. 1 modified. Accepted for publication in PRD