Exploring hints for dark energy density evolution in light of recent data
arXiv:1405.5116 · doi:10.1016/j.physletb.2015.08.064
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).
8 pages, 5 figures
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