We show that gravitational theories with a nonminimal coupling (NMC) to the matter fields lead to a violation of Etherington's distance-duality relation, which relates the luminosity and angular diameter distances. We derive constraints on power-law and exponential NMC models using existing measurements of type Ia supernovae and baryon acoustic oscillations throughout the redshift range 0<z<1.5. These complement previous constrains derived from cosmic-microwave background radiation and big-bang nucleosynthesis data.
@article{arxiv.2104.01209,
title = {Distance-duality in theories with a nonminimal coupling to gravity},
author = {R. P. L. Azevedo and P. P. Avelino},
journal= {arXiv preprint arXiv:2104.01209},
year = {2021}
}
Comments
9 pages, 6 figures, 2 tables; updated to match version published in PRD