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Paper detail

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

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).

preprint2015arXivOpen access
Victor H. Cardenas
astro-ph.COgr-qc
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Victor H. Cardenas

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