Exploring the Hubble Tension and Spatial Curvature from the Ages of Old Astrophysical Objects

• Published in: The Astrophysical journal Vol. 928; no. 2; pp. 165 - 174
• Main Authors: Wei, Jun-Jie, Melia, Fulvio
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 01.04.2022; IOP Publishing
• Subjects: Age; Astronomical models; Astrophysics; Confidence intervals; Cosmological models; Cosmological parameters; Cosmology; Curvature; Galaxies; Galaxy ages; Hubble constant; Luminosity; Quasars; Red shift; Supernovae; Tension; Type Ia supernovae; Universe

We use the age measurements of 114 old astrophysical objects (OAO) in the redshift range 0 ≲ z ≲ 8 to explore the Hubble tension. The age of the universe at any z is inversely proportional to the Hubble constant, H 0 , so requiring the universe to be older than the OAO it contains at any z will lead...