The matter with(in) CPL

We introduce a two-parameter phenomenological extension of the $\Lambda$CDM model in which the equation of state parameter of the ``dust'' fluid becomes different from zero for redshifts below a transition value $z_t$. Using data from DESI DR2 BAO, DESY5 Sn~Ia and CMB distance priors ($R,l...

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Bibliographic Details
Main Authors: Leonardo Giani, Rodrigo Von Marttens, Oliver Fabio Piattella
Format: Article
Language:English
Published: Maynooth Academic Publishing 2025-07-01
Series:The Open Journal of Astrophysics
Online Access:https://doi.org/10.33232/001c.142699
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