Resolving the Hubble Tension in the Early Dark Energy Framework with JWST and DESI Data

Authors:
Open Access
Publisher website
Google Scholar
Abstract
In the JWST and DESI era, the JWST high-redshift galaxy observations and DESI baryon acoustic oscillation (BAO) measurements severely challenge the standard ΛCDM model, while the H 0 tension becomes increasingly prominent. In this work, we investigate the capability of the early dark energy (EDE) model to alleviate the H 0 tension utilizing cosmic microwave background (CMB) data from Planck, the Atacama Cosmology Telescope, and the South Pole Telescope, BAO data from DESI, and ultraviolet luminosity function observations from the JWST. Within the canonical Axion-EDE framework, the CMB+DESI+JWST data significantly increase the H 0 value to 71.58 ± 1.05 km s −1 Mpc −1 , with the residual H 0 tension quantified by Q DMAP reduced to 0.6 σ . Simultaneously, this model improves the fit to the JWST data and exhibits statistical performance significantly better than the ΛCDM model, with Δ χ tot 2 = − 18.26 and a change in the deviance information criterion (DIC) of ΔDIC = −11.89. Our results highlight the complementary advantages of JWST high-redshift galaxy data alongside early- and late-time observations in testing EDE and alleviating the H 0 tension.
Funding Information
  • National Natural Science Foundation of China (12533001)
  • National SKA Program of China (2022SKA0110200)

This publication has 133 references indexed in Scilit: