34 citations · 296 across the 22 of their papers we have counts for
9 papers · 1 filter
Scalar field dark energy: Insights into cosmological evolution and black hole accretion
M. Koussour, Y. Sekhmani, Alnadhief H. A. Alfedeel +2
We propose a novel approach to parameterize the equation of state for Scalar Field Dark Energy (SFDE) and use it to derive analytical solutions for various cosmological parameters.…
Perturbations in Bianchi Type-I spacetimes with varying Lambda, G
Alnadhief H. A. Alfedeel, Maye Elmardi, Amare abebe
In this paper, we investigate the evolution of cosmological perturbations within the context of Bianchi Type spacetimes. We consider models containing viscous fluids with evolv…
Square-Root parametrization of dark energy in cosmology
M. Koussour, N. Myrzakulov, Alnadhief H. A. Alfedeel +3
This paper is a parametrization of the equation of state (EoS) parameter of dark energy (DE), which is parameterized using Square-Root (SR) form i.e. $ω_{SR}=\text{$ω_{0}$}+\text{$…
Constraining the cosmological model of modified gravity: Phantom dark energy and observational insights
M. Koussour, N. Myrzakulov, Alnadhief H. A. Alfedeel +1
Despite the significant accomplishments of general relativity, numerous unresolved issues persist in our understanding of the cosmos. One of the most perplexing challenges is the o…
Cosmological implications of the constant jerk parameter in gravity theory
N. Myrzakulov, M. Koussour, Alnadhief H. A. Alfedeel +1
This study delves into modified gravity theories that are equivalent to General Relativity but involve the torsion or non-metricity scalar instead of the curvature scalar. Specific…
Modeling cosmic acceleration with a generalized varying deceleration parameter
M. Koussour, N. Myrzakulov, Alnadhief H. A. Alfedeel +2
Understanding the accelerating expansion of the Universe remains a fundamental challenge in modern cosmology. In this paper, we investigate a cosmological model parametrized by a g…
Constrained evolution of effective equation of state parameter in non-linear dark energy model: Insights from Bayesian analysis of cosmic chronometers and Pantheon samples
N. Myrzakulov, M. Koussour, Alnadhief H. A. Alfedeel +1
We conduct a Bayesian analysis of recent observational datasets, specifically the Cosmic Chronometers (CC) dataset and Pantheon samples, to investigate the evolution of the EoS par…
Impact of dark energy on the equation of state in light of the latest cosmological data
N. Myrzakulov, M. Koussour, Alnadhief H. A. Alfedeel +1
We reconstruct the effective Equation of State (EoS) within the framework of General Relativity (GR) theory in a homogeneous and isotropic FLRW Universe, which is assumed to be com…
Constraining the cosmological model using recent observational data
N. Myrzakulov, M. Koussour, Alnadhief H. A. Alfedeel +1
In this paper, we consider a comprehensive investigation of the cosmological model described by (where represents a free parameter) in light of the most rece…