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- W4366777040 abstract "A single logotropic fluid, responsible for the existence of the whole dark sector, is here extensively revised at intermediate redshifts. In particular, by investigating possible generalizations that conceptually overcome previous issues of standard logotropic scenarios, we fix bound over classes of logotropic models that exhibit additional terms in the equation of state. Employing σ8 measurements combined with low redshift data sets of Supernovae and Hubble observational data, we show the statistical significance of those extensions and their departure from the standard cosmological model. Evidences against generalized versions of logotropic models are, in particular, prompted. Our outcomes definitively show that any departure from the original logotropic model, including the Anton–Schmidt dark energy, are clearly disfavored at the level of perturbations and/or background cosmology. This indicates that, in order to have a logotropic fluid, plausible generalized versions of it would point out to reduce the complexity of the fluid itself, instead of adding extra terms." @default.
- W4366777040 created "2023-04-25" @default.
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- W4366777040 date "2023-09-01" @default.
- W4366777040 modified "2023-10-10" @default.
- W4366777040 title "High redshift constraints on extended logotropic models" @default.
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- W4366777040 doi "https://doi.org/10.1016/j.astropartphys.2023.102852" @default.
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