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arXiv · 2104.01209

Distance-duality in theories with a nonminimal coupling to gravity

R. P. L. Azevedo·P. P. Avelino
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Abstract

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.

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R. P. L. Azevedo, P. P. Avelino. 2021-04-02. Distance-duality in theories with a nonminimal coupling to gravity. https://doi.org/10.1103/physrevd.104.084079

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