Exploring hints for dark energy density evolution in light of recent data
Cosmology and Nongalactic Astrophysics
2015-09-30 v2 General Relativity and Quantum Cosmology
Abstract
Considering a quadratic parametrization of the dark energy density, we explore signatures of evolution using data from gas mass fraction in clusters, type Ia supernova, BAO and CMB. We find -- excluding CMB data -- a preference for a evolution of towards smaller values as redshift increases, a result consistent with a recent study using the BAO DR11 data by Delubac et al. (2015).
Keywords
Cite
@article{arxiv.1405.5116,
title = {Exploring hints for dark energy density evolution in light of recent data},
author = {Victor H. Cardenas},
journal= {arXiv preprint arXiv:1405.5116},
year = {2015}
}
Comments
8 pages, 5 figures