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arXiv · 1405.5116

Exploring hints for dark energy density evolution in light of recent data

Victor H. Cardenas
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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 $ρ_{de}(z)$ towards smaller values as redshift increases, a result consistent with a recent study using the BAO DR11 data by Delubac et al. (2015).

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Victor H. Cardenas. 2015-09-10. Exploring hints for dark energy density evolution in light of recent data. https://doi.org/10.1016/j.physletb.2015.08.064

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