Parametric and nonparametric methods hint dark energy evolution

نویسندگان

چکیده

We study dark energy through the viewpoints of parametric and nonparametric analyses late-time cosmological data. consider four Hubble parameter priors reflecting tension make use two phenomenological functions, namely, a normalized density compactified equation state. predict shape both functions present new constraints on The results hint at evolution regardless choice method priors. fact that similar evolutions for densities are found drastically different approaches suggests features in this paper driven by data, not artifact reconstruction methods applied.

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ژورنال

عنوان ژورنال: Physics of the Dark Universe

سال: 2022

ISSN: ['2212-6864']

DOI: https://doi.org/10.1016/j.dark.2022.101017