activity
20202026
most citedQuasiperiodic Oscillations, Quasinormal Modes and Shadows of Bardeen-Kiselev Black Holes

104 citations · 512 across the 35 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

5 papers · 1 filter

astro-ph.CO2025★ 16 cited

Modified cosmology in gravity

Y. Myrzakulov, Alnadhief H. A. Alfedeel, M. Koussour +3

In this letter, we investigate cosmology within the framework of modified gravity using the non-linear model , where , , and are…

astro-ph.CO2025★ 8 cited

Energy conditions in gravity

Y. Myrzakulov, O. Donmez, M. Koussour +3

We are experiencing a golden age of experimental cosmology, with exact and accurate observations being used to constrain various gravitational theories like never before. Alongside…

astro-ph.CO2024★ 32 cited

Observational constraints on the equation of state of viscous fluid in gravity

M. Koussour, A. Altaibayeva, S. Bekov +3

In this paper, we investigate a cosmological model based on viscous gravity as a potential alternative to dark energy. This model incorporates bulk viscosity and is analyz…

astro-ph.CO2024★ 10 cited

Signature flips in time-varying cosmological models with observational data

Yerlan Myrzakulov, M. Koussour, M. Karimov +1

In this study, we investigate signature flips within the framework of cosmological models featuring a time-varying vacuum energy term . Specifically, we consider the power-la…

astro-ph.CO2024★ 30 cited

Exploring late-time cosmic acceleration: A study of a linear cosmological model using observational data

A. Zhadyranova, M. Koussour, S. Bekkhozhayev +2

Understanding the evolution of dark energy poses a significant challenge in modern cosmology, as it is responsible for the universe's accelerated expansion. In this study, we focus…