Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

The Hubble tension has now grown to a level of significance which can no longer be
ignored and calls for a solution which, despite a huge number of attempts, has so far eluded …

We constrain six possible extensions to the Λ cold dark matter (CDM) model using
measurements from the Dark Energy Survey's first three years of observations, alone and in …

We present evidence for a suppressed growth rate of large-scale structure during the dark-
energy-dominated era. Modeling the growth rate of perturbations with the “growth index” γ …

We explore observational constraints on a cosmological model with an interaction between
dark energy (DE) and dark matter (DM), using a compilation of 15 measurements of the 2D …

The f (Q) theories of modified gravity arise from the consideration of non-metricity as the
basic geometric quantity, and have been proven to be very efficient in describing the late …

In this paper, we consider the effects of adding curvature in extended cosmologies involving
a free-to-vary neutrino sector and different parametrizations of dark energy (DE). We make …

In this work, we explore how modified gravity theories based on the nonmetricity scalar,
known as f (Q) gravity, affect the propagation of gravitational waves from inspiraling of binary …

Early dark energy (EDE) offers a solution to the so-called Hubble tension. Recently, it was
shown that the constraints on EDE using Markov Chain Monte Carlo are affected by prior …

The dynamics of the Universe is analyzed using an exponential function for the dark energy
equation of state, known as Gong-Zhang parameterization. The phase space of the free …