activity
20152025
most citedGrowth of matter perturbations in clustered holographic dark energy cosmologies

41 citations · 165 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.CO2025

How Complex is Dark Energy? A Bayesian Analysis of CPL Extensions with Recent DESI BAO Measurements

Mohammad Malekjani, Saeed Pourojaghi, Zahra Davari

The nature of dark energy is one of the big puzzling issues in cosmology. While CDM provides a good fit to the observational data, evolving dark energy scenarios, such as the CP…

astro-ph.CO2024

CDM model against cosmography: A possible deviation after DESI 2024

Saeed Pourojaghi, Mohammad Malekjani, Zahra Davari

In this study, we present an analysis of the standard flat-CDM model using a cosmographic approach, incorporating recent DESI BAO observations and Supernovae Type Ia catalogues…

astro-ph.CO2024

Cosmological constraints on dark energy parametrizations after DESI 2024: Persistent deviation from standard CDM cosmology

M. Malekjani, Z. Davari, S. Pourojaghi

In this work, we present a study on cosmological constraints of dark energy (DE) parametrizations after the observations of Dark Energy Spectroscopic Instruments (DESI) for Baryon…

astro-ph.CO2021★ 34 cited

MOG cosmology without dark matter and the cosmological constant

Zahra Davari, Sohrab Rahvar

In this work, we investigate the MOdified Gravity (MOG) theory for dynamics of the universe and compare the results with the CDM cosmology. We study the background cosmological…

astro-ph.GA2020★ 19 cited

Testing MOdified Gravity (MOG) theory and dark matter model in Milky Way using the local observables

Zahra Davari, Sohrab Rahvar

In this paper, we have investigated one of the alternative theories to dark matter named MOdified Gravity (MOG) by testing its ability to describe the local dynamics of the Milky W…

gr-qc2019★ 22 cited

Cosmological constrains on minimally and non-minimally coupled scalar field models

Zahra Davari, Valerio Marra, Mohammad Malekjani

We study the minimally and non-minimally coupled scalar field models as possible alternatives for dark energy, the mysterious energy component that is driving the accelerated expan…

gr-qc2018★ 15 cited

New parameterization for unified dark matter and dark energy

Zahra Davari, Mohammad Malekjani, Michal Artymowski

In this paper we investigate a new phenomenological parameterization for unified dark matter and dark energy based on the polynomial expansion of the barotropic equation of state p…

astro-ph.CO2016★ 34 cited

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…

astro-ph.CO2015★ 41 cited

Growth of matter perturbations in clustered holographic dark energy cosmologies

Ahmad Mehrabi, Spyros Basilakos, Mohammad Malekjani +1

We investigate the growth of matter fluctuations in holographic dark energy cosmologies. First we use an overall statistical analysis involving the latest observational data in ord…