Abstract The standard Λ Cold Dark Matter (ΛCDM) cosmological model provides a good
description of a wide range of astrophysical and cosmological data. However, there are a …

A number of challenges to the standard Λ CDM model have been emerging during the past
few years as the accuracy of cosmological observations improves. In this review we discuss …

In the current paper, a dark energy (DE) model reconstructed from the well‐motivated
deceleration parameter (DP) q (z)= q 0+ q 1 z/(1+ z) 2 q(z)=q_0+q_1z/(1+z)^2 is analyzed. A …

Constraining the dark energy deceleration parameter is one of the fascinating topics in the
recent cosmological paradigm. This work aims to reconstruct the dark energy using …

In this paper, a well‐motivated parameterization of the Hubble parameter (H) is revisited that
renders two models of dark energy showing some intriguing features of the late‐time …

Alternative theories of gravity predict modifications in the propagation of gravitational waves
(GW) through space–time. One of the smoking-gun predictions of such theories is the …

Several studies in the literature have found a disagreement between compressed data on
Baryon Acoustic Oscillations (BAO) derived using two distinct methodologies: the two …

Baryon acoustic oscillations (BAO) involve measuring the spatial distribution of galaxies to
determine the growth rate of cosmic structures. We derive constraints on cosmological …

Confirmation of accelerated expansion of the Universe probed the concept of dark energy
theory, and since then, numerous models have been introduced to explain its origin and …

The first multi-messenger gravitational wave event has had a transformative effect on the
space of modified gravity models. In this paper we study the enhanced tests of gravity that …