Measurements of the Cosmological Parameters &Omega;_m and <i>H</i>₀

Abstract

From Baryon Acoustic Oscillation measurements with Sloan Digital Sky Survey SDSS DR14 galaxies, and the acoustic horizon angle measured by the Planck Collaboration, we obtain Ω m =0.2724±0.0047 , and h +0.020 &sdot; ∑ m v =0.7038±0.0060 , assuming flat space and a cosmological constant. We combine this result with the 2018 Planck “TT, TE, EE + lowE + lensing” analysis, and update a study of ∑ m v with new direct measurements of σ 8 , and obtain ∑ m v =0.27±0.08 eV assuming three nearly degenerate neutrino eigenstates. Measurements are consistent with Ω k =0 , and Ω de ( a )=Ω Λ constant.