Cosmological constraints on scale-dependent cosmology
Abstract
This paper examines a cosmological model of scale-dependent gravity. The gravitational action is taken to be the Einstein-Hilbert term supplemented with a cosmological constant, where the couplings, and , run with the energy scale . % Also, notice that, by construction, our formalism recovers general relativity when in the limit of constant Newton's coupling. % Two sub-models based on the scale-dependent cosmological model are confronted with recent observational data from: i) the Hubble parameter , ii) distance modulus , and iii) baryon acoustic scale evolution as functions of redshift (BAO). % The viability of the model is discussed, obtaining the best-fit parameters and the maximum likelihood contours for these observables. Finally, a joint analysis is performed for ++BAO.
Cite
@article{arxiv.2210.11853,
title = {Cosmological constraints on scale-dependent cosmology},
author = {Pedro D. Alvarez and Benjamin Koch and Cristobal Laporte and Angel Rincon},
journal= {arXiv preprint arXiv:2210.11853},
year = {2024}
}
Comments
18 pages, 12 figures, accepted for publication in Physics of the Dark Universe