Effect of nonfactorizable background geometry on the thermodynamics of galaxy clusters

AW Khanday, S Upadhyay, HA Bagat… - … Physics Letters A, 2022 - World Scientific
In this paper, we study the effect of nonfactorizable background geometry on the
thermodynamics of the clustering of galaxies. A canonical partition function is derived for the …

Probing dark fluids and modified gravity with gravitational lensing

L Perivolaropoulos, I Antoniou… - Monthly Notices of the …, 2023 - academic.oup.com
We generalize the result of Rindler-Ishak for the lensing deflection angle in a Schwarzschild–
deSitter (SdS) space–time, to the case of a general spherically symmetric fluid beyond the …

Thermodynamics of galaxy clusters in modified Newtonian potential

AW Khanday, S Upadhyay, PA Ganai - Physica Scripta, 2021 - iopscience.iop.org
We study the thermodynamics of galaxy clusters in a modified Newtonian potential
motivated by a general solution to Newton's' sphere-point'equivalence theorem. We obtain …

Study of the large scale structure through modified gravity theory using statistical mechanics

AW Khanday, S Upadhyay, PA Ganai - Physica A: Statistical Mechanics …, 2023 - Elsevier
We discuss the galaxy clustering based on thermodynamics and statistical mechanics in the
expanding universe in a modified theory of gravity. The modified general relativity (MGR) is …

[HTML][HTML] Effect of GUP on the large scale structure formation in the universe

AW Khanday, S Upadhyay, PA Ganai - The European Physical Journal C, 2022 - Springer
We study the clustering of galaxies in generalized uncertainty principle (GUP) modified
Newtonian potential. We compute the corrected N-particle partition function which leads to …

Large scale structure formation for conformal theory of gravity

AW Khanday, S Upadhyay, N Iqbal… - General Relativity and …, 2023 - Springer
We assume a modified (conformal) gravity theory, which produces a stronger interaction at
large scale, in order to discuss the statistical distribution of the galaxy clusters based on …

A simplistic approach to the study of two-point correlation function in galaxy clusters

DA Qadri, AW Khanday, PA Ganai - arXiv preprint arXiv:2206.15173, 2022 - arxiv.org
We developed the functional form of the two-point correlation function under the
approximation of fixed particle number density n (bar). We solved the quasi-linear partial …

Comparative study of galaxy clustering using halo approximation and mean-field theory in the light of modified theories of gravity

HA Bagat, M Hameeda, PA Ganai - Physica Scripta, 2022 - iopscience.iop.org
In this manuscript, we have explored the large-scale structure (LSS) of the Universe using
the halo approximation of galaxies and the mean-field (mean-field approximation) theory of …

[PDF][PDF] Statistical description of galactic clusters in Finzi gravity model

AW Khanday, S Upadhyay, PA Ganai - arXiv preprint arXiv …, 2022 - academia.edu
We exploit a new theory of gravity proposed by Finzi, which gives stronger interaction at
large scales, to study the thermodynamic description of galaxy clusters. We employ a …

Statistical description of galaxy clusters in Finzi model of gravity

AW Khanday, S Upadhyay, N Iqbal, PA Ganai - Physica Scripta, 2023 - iopscience.iop.org
We exploit a new theory of gravity proposed by Finzi, which gives stronger interaction at
large scales, to study the thermodynamic description of galaxy clusters. We employ a …