Abstract Recent Baryon Acoustic Oscillation (BAO) measurements released by DESI, when
combined with Cosmic Microwave Background (CMB) data from Planck and two different …

We critically examine the state of current constraints on the dark energy (DE) equation of
state (EoS) w. Our study is motivated by the observation that, while broadly consistent with …

The idea of composite dark energy (DE) is quite natural since on general grounds we expect
that the vacuum energy density (associated with the cosmological term Λ) may appear in …

By using gamma-ray burst (GRB) data to simultaneously constrain Amati correlation
parameters and cosmological parameters in six spatially flat and nonflat dark energy …

The reason for the present accelerated expansion of the Universe stands as one of the most
profound questions in the realm of science, with deep connections to both cosmology and …

Within the geometrical trinity of gravity, we analyze scalar field dark energy models
minimally and non-minimally coupled to gravity, postulating that a Yukawa-like interacting …

Various precise cosmological observations, eg, Supernovae Ia (SNe Ia)[1, 2], the cosmic
microwave background (CMB) radiation [3–8], the large-scale structure (LSS) of the universe …

Some classes of interacting two-fluid model of the expanding universe - IOPscience Skip to
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In this study, we analyze Type Ia supernovae (SNe Ia) data sourced from the Pantheon+
compilation to investigate late‐time physics effects influencing the expansion history, H (z) H …

We derive new simple approximations for quintessence solutions to Einsteins's field
equations in spatially homogeneous, isotropic and flat spacetimes. The approximations are …