From Baryon Acoustic Oscillation measurements with Sloan Digital Sky Survey SDSS DR14 galaxies , and the acoustic horizon angle \theta _ { * } measured by the Planck Collaboration , we obtain \Omega _ { m } = 0.2724 \pm 0.0047 , and h + 0.020 \cdot \sum { m _ { \nu } } = 0.7038 \pm 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 \sum m _ { \nu } with new direct measurements of \sigma _ { 8 } , and obtain \sum m _ { \nu } = 0.27 \pm 0.08 eV assuming three nearly degenerate neutrino eigenstates .
Measurements are consistent with \Omega _ { k } = 0 , and \Omega _ { \textrm { \small { de } } } ( a ) = \Omega _ { \Lambda } constant .