English

$H_0$ tension without CMB data: beyond the $\Lambda$CDM

Cosmology and Nongalactic Astrophysics 2021-08-03 v2 General Relativity and Quantum Cosmology High Energy Physics - Phenomenology

Abstract

We investigate the H0H_0 tension in a range of extended model frameworks beyond the standard Λ\LambdaCDM without the data from cosmic microwave background (CMB). Specifically, we adopt the data from baryon acoustic oscillation, big bang nucleosynthesis and type Ia supernovae as indirect measurements of H0H_0 to study the tension. We show that the estimated value of H0H_0 from indirect measurements is overall lower than that from direct local ones regardless of the data sets and a range of extended models to be analyzed, which indicates that, although the significance of the tension varies depending on models, the H0H_0 tension persists in a broad framework beyond the standard Λ\LambdaCDM model even without CMB data.

Keywords

Cite

@article{arxiv.2105.12312,
  title  = {$H_0$ tension without CMB data: beyond the $\Lambda$CDM},
  author = {Fumiya Okamatsu and Toyokazu Sekiguchi and Tomo Takahashi},
  journal= {arXiv preprint arXiv:2105.12312},
  year   = {2021}
}

Comments

26 pages, 12 figures, published version

R2 v1 2026-06-24T02:28:18.935Z