Reevaluating H₀ Tension with Non-Planck CMB and DESI BAO Joint Analysis

2024/11/21 by Ye-Huang Pang, Xue Zhang, Pang, Ye-Huang +3 · 2 citations
Earth and Planetary Sciences · Mathematics · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #Earthquake Detection and Analysis #FOS: Physical sciences #Statistical and numerical algorithms

paper · pdf · doi:10.48550/arxiv.2411.14189

openalex publication_date 2024/11/21 · openalex created_date 2024/11/24 · openalex updated_date 2026/07/28

Abstract

H₀ tension in the spatially flat ΛCDM model is reevaluated by employing three sets of non-Planck CMB data, namely WMAP, WMAP+ACT, and WMAP+SPT, in conjunction with DESI BAO data and non-DESI BAO datasets including 6dFGS, SDSS DR7, and SDSS DR16. Our analysis yields H₀ = 68.86± 0.68~\mathrmkm s^-1 Mpc^-1 with WMAP+DESI BAO, H₀ = 68.72± 0.51~\mathrmkm s^-1 Mpc^-1 with WMAP+ACT+DESI BAO, and H₀ = 68.62± 0.52~\mathrmkm s^-1 Mpc^-1 with WMAP+SPT+DESI BAO. The results of non-Planck CMB+DESI BAO exhibit a 3.4σ, 3.7σ, and 3.8σ tension with the SH0ES local measurement respectively which are around 1 σ lower in significance for the Hubble tension compared to Planck CMB+DESI BAO. Moreover, by combining DESI BAO data+non-Planck CMB measurements, we obtain a more stringent constraint on the Hubble constant compared to non-DESI BAO data+non-Planck CMB data, as well as reducing the significance of the Hubble tension.

Cited by

• Testing Gauss-Bonnet Gravity with DESI BAO Data
• New Insights into Dark Energy from DESI DR2 with CMB and SNIa

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