TY - JOUR
T1 - Observational constraints on scale-dependent cosmology
AU - Alvarez, Pedro D.
AU - Koch, Benjamin
AU - Laporte, Cristobal
AU - Rincón, Ángel
N1 - Publisher Copyright:
© 2024 The Authors
PY - 2024/7
Y1 - 2024/7
N2 - 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, Gk and Λk, run with the energy scale k. 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 H(z), (ii) distance modulus μ(z), 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 H(z)+μ(z)+BAO.
AB - 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, Gk and Λk, run with the energy scale k. 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 H(z), (ii) distance modulus μ(z), 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 H(z)+μ(z)+BAO.
KW - Alternative models of gravity
KW - Cosmology
KW - Scale-dependent gravity
UR - http://www.scopus.com/inward/record.url?scp=85194724529&partnerID=8YFLogxK
U2 - 10.1016/j.dark.2024.101531
DO - 10.1016/j.dark.2024.101531
M3 - Article
AN - SCOPUS:85194724529
SN - 2212-6864
VL - 45
JO - Physics of the Dark Universe
JF - Physics of the Dark Universe
M1 - 101531
ER -