Eppur è piatto? The Cosmic Chronometers Take on Spatial Curvature and Cosmic Concordance

• Published in: The Astrophysical journal Vol. 908; no. 1; pp. 84 - 99
• Main Authors: Vagnozzi, Sunny, Loeb, Abraham, Moresco, Michele
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 01.02.2021; IOP Publishing
• Subjects: Astronomical models; Astrophysics; Big Bang theory; Chronometers; Cosmic background radiation; Cosmic microwave background; Cosmological parameters; Cosmology; Curvature; Datasets; Expanding universe theory; Galactic evolution; Galaxies; Galaxy ages; Measuring instruments; Observational cosmology; Parameters; Polarization; Systematics; Universe

The question of whether cosmic microwave background (CMB) temperature and polarization data from Planck favor a spatially closed universe with curvature parameter K < 0 has been the subject of recent intense discussions. Attempts to break the geometrical degeneracy combining Planck data with exte...