2021/07/31 by Rafael C. Nunes, Eleonora Di Valentino · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc #hep-ph
paper · pdf · doi:10.1103/physrevd.104.063529
published as Phys. Rev. D 104, 063529 (2021) · 8 pages, 2 Figures, 2 Tables. Matches the version published in PRD
arxiv created 2021/09/15 · arxiv updated 2021/09/17
It has been intensively discussed if modifications in the dynamics of the Universe at late times is able or not to solve the H0 tension. On the other hand, it has also been argued that the H0 tension is actually a tension on the supernova absolute magnitude MB. In this work, we robustly constraint MB using Pantheon Supernovae Ia (SN) sample, Baryon Acoustic Oscillations (BAO), and Big Bang Nucleosynthesis (BBN) data, and assess the MB tension by comparing three theoretical models, namely the standard ΛCDM, the wCDM and a non-gravitational interaction (IDE) between dark energy (DE) and dark matter (DM). We find that the IDE model can solve the MB tension with a coupling different from zero at 95% CL, confirming the results obtained using a H0 prior.