Using lower-redshift, non-CMB, data to constrain the Hubble constant and other cosmological parameters
Cosmology and Nongalactic Astrophysics2022-05-31v2General Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory
We use updated Hubble parameter and baryon acoustic oscillation data, as well as other lower-redshift Type Ia supernova, Mg II reverberation-measured quasar, quasar angular size, H II starburst galaxy, and Amati-correlated gamma-ray burst data, to jointly constrain cosmological parameters in six cosmological models. The joint analysis provides model-independent determinations of the Hubble constant, H0=69.7±1.2kms−1Mpc−1, and the current non-relativistic matter density parameter, Ωm0=0.295±0.017. These error bars are factors of 2.2 and 2.3 larger than the corresponding error bars in the flat ΛCDM model from Planck TT,TE,EE+lowE+lensing cosmic microwave background anisotropy data. Based on the deviance information criterion (DIC), the flat ΛCDM model is most favored but mild dark energy dynamics and a little spatial curvature are not ruled out.
@article{arxiv.2203.10825,
title = {Using lower-redshift, non-CMB, data to constrain the Hubble constant and other cosmological parameters},
author = {Shulei Cao and Bharat Ratra},
journal= {arXiv preprint arXiv:2203.10825},
year = {2022}
}