2024/10/09 by J. P. Hu, Hu, J. P., X. D. Jia +5 · 3 citations
Physics and Astronomy · Social Sciences · #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #International Science and Diplomacy #Relativity and Gravitational Theory
paper · pdf · doi:10.48550/arxiv.2410.06450
openalex publication_date 2024/10/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Discrepancy between the measurements of Hubble constant H0 from the cosmic microwave background (CMB) and the local distance ladder is the most serious challenge to the standard ΛCDM model. Recent researches point out that it might be related with the violation of cosmological principle. Here, we investigate the impact of dipole-monopole correction on the constraints of H0 utilizing the dipole fitting method based on the ΛCDM model and cosmography method. Our results show that the dipole-monopole correction can reduce the constraints of H0 from a larger value consistent with SH0ES results to a smaller value consistent with Planck results. This finding can effectively alleviate the Hubble tension. Through making redshift tomography and model-independent analyses, we confirm that our findings are independent of redshift and cosmological model. In addition, the theoretical prediction of H(z)/(1+z) reconstructed by the constraints of ΛCDM model with the dipole correction is in agreement with BAOs measurements including 5 DESI BAOs within 1σ range except datapoint at z = 0.51. Our research suggests that the Hubble tension originates from new physics beyond the standard ΛCDM model, which might lead to a violation of the cosmological principle.