Constraints on dark energy models from radial baryon acoustic scale measurements
Astrophysics
2011-02-11 v3
Abstract
We use the radial baryon acoustic oscillation (BAO) measurements of Gaztanaga et al. (2008) to constrain parameters of dark energy models. These constraints are comparable with constraints from other "non-radial" BAO data. The radial BAO data are consistent with the time-independent cosmological constant model but do not rule out time-varying dark energy. When we combine radial BAO and the Kowalski et al. (2008) Union type Ia supernova data we get very tight constraints on dark energy.
Keywords
Cite
@article{arxiv.0810.2104,
title = {Constraints on dark energy models from radial baryon acoustic scale measurements},
author = {Lado Samushia and Bharat Ratra},
journal= {arXiv preprint arXiv:0810.2104},
year = {2011}
}
Comments
24 pages, 8 figures, 1 table. Minor changes to match the published version