Article ID Journal Published Year Pages File Type
1850721 Physics Letters B 2015 7 Pages PDF
Abstract

Considering a quadratic parameterization 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 an evolution of ρde(z)ρde(z) towards smaller values as the redshift increases, a result consistent with a recent study using the BAO DR11 data by Delubac et al. (2015).

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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