68 citations · 489 across the 16 of their papers we have counts for
11 papers · 1 filter
Is Dark Energy Changing? Probing the Universe's Expansion with present and future astronomical probes
Mehdi Rezaei, Supriya Pan, Weiqiang Yang +1
This study explores the possibility of a time-varying dark energy (DE) equation of state (EoS) deviating from -1. We employ a comprehensive dataset of usual astronomical probes (Ty…
Oscillating dark energy in light of the latest observations and its impact on the Hubble tension
Mehdi Rezaei
In this paper we have performed a comparative study of different types of oscillating dark energy models using the Metropolis algorithm of MCMC. Eight different oscillating paramet…
Evidence of dynamical dark energy in a non-flat universe: current and future observations
Mehdi Rezaei, Supriya Pan, Weiqiang Yang +1
We investigate the dark energy phenomenology in an extended parameter space where we allow the curvature density of our universe as a free-to-vary parameter. The inclusion of the c…
Running vacuum versus Holographic dark energy: a cosmographic comparison
Mehdi Rezaei, Joan Sola Peracaula
We perform a comparative study of different types of dynamical dark energy models (DDES) using the cosmographic method. Among the models being examined herein we have the Running V…
Cosmographic parameters in model-independent approaches
Ahmad Mehrabi, Mehdi Rezaei
Cosmographic approach, a Taylor expansion of the Hubble function, has been used as a model-independent method to investigate the evolution of the universe in the presence of cosmol…
Cosmographic approach to Running Vacuum dark energy models: new constraints using BAOs and Hubble diagrams at higher redshifts
Mehdi Rezaei, Joan Sola, Mohammad Malekjani
In this work we study different types of dark energy (DE) models in the framework of the cosmographic approach, with emphasis on the Running Vacuum models (RVMs). We assess their v…
Comparison between different methods of model selection in cosmology
Mehdi Rezaei, Mohammad Malekjani
There are several methods for model selection in cosmology which have at least two major goals, that of finding the correct model or predicting well. In this work we discuss throug…
Cosmography approach to dark energy cosmologies: new constrains using the Hubble diagrams of supernovae, quasars and gamma-ray bursts
Mehdi Rezaei, Saeed Pour Ojaghi, Mohammad Malekjani
In the context of cosmography approach and using the data of Hubble diagram for supernovae, quasars and gamma-ray bursts, we study some DE parametrizations and also the concordance…
A Bayesian comparison between CDM and phenomenologically emergent dark energy models
M. Rezaei, T. Naderi, M. Malekjani +1
In this work we examine the recently proposed phenomenological emergent dark energy (PEDE) model by \cite{Li:2019yem}, using the latest observational data in both expansion and per…
Constraints to dark energy using PADE parameterisations
Mehdi Rezaei, Mohammad Malekjani, Spyros Basilakos +2
We put constraints on dark energy properties using the PADE parameterisation, and compare it to the same constraints using Chevalier-Polarski-Linder (CPL) and CDM, at both the b…
Agegraphic dark energy: growth index and cosmological implications
M. Malekjani, S. Basilakos, A. Mehrabi +2
We study the main cosmological properties of the agegraphic dark energy model at the expansion and perturbation levels. Initially, using the latest cosmological data we implement a…