Interaction in the dark sector: a Bayesian analysis with latest observations

2017/12/14 by Tassia Ferreira, C. Pigozzo, Ferreira, T. +5 · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Gamma-ray bursts and supernovae #General Relativity and Quantum Cosmology (gr-qc) #Radio Astronomy Observations and Technology

paper · pdf · doi:10.48550/arxiv.1712.05428

openalex publication_date 2017/12/14 · openalex created_date 2017/12/22 · openalex updated_date 2026/08/01

Abstract

By combining cosmological probes at low, intermediate and high redshifts, we investigate the observational viability of a class of models with interaction in the dark sector. We perform a Bayesian analysis using the latest data sets of type Ia supernovae, baryon acoustic oscillations, the angular acoustic scale of the cosmic microwave background, and measurements of the expansion rate. When combined with the current measurement of the local expansion rate obtained by the Hubble Space Telescope, we find that these observations provide evidence in favour of interacting models with respect to the standard cosmology.

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• Quasar cosmology II: joint analyses with Cosmic Microwave Background

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