Clustering of Galaxies with f(R) gravity
Nov 15, 2017
14 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 474 (2018) 2, 2430-2443
- Published: Feb 21, 2018
e-Print:
- 1711.06630 [astro-ph.CO]
View in:
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Abstract: (Oxford University Press)
Based on thermodynamics, we discuss the galactic clustering of expanding Universe by assuming the gravitational interaction through the modified Newton's potential given by f(R) gravity. We compute the corrected N-particle partition function analytically. The corrected partition function leads to more exact equations of state of the system. By assuming that the system follows quasi-equilibrium, we derive the exact distribution function that exhibits the f(R) correction. Moreover, we evaluate the critical temperature and discuss the stability of the system. We observe the effects of correction of f(R) gravity on the power-law behaviour of particle–particle correlation function also. In order to check thefeasibility of an f(R) gravity approach to the clustering of galaxies, we compare our results with an observational galaxy cluster catalogue.Note:
- 14 pages, 8 figures, 1 table; accepted for publication on MNRAS
- methods: analytical
- methods: data analysis
- dark energy
- large-scale structure of Universe
- cosmology: theory
- gravitation: f(R)
- gravitation: interaction
- galaxy: cluster
- space-time: expansion
- partition function
References(35)
Figures(8)