How the dark energy can reconcile Planck with local determination of the Hubble constant

Abstract

We try to reconcile the tension between the local 2.4 % determination of Hubble constant and its global determination by Planck CMB data and BAO data through modeling the dark energy variously. We find that the chi-square is significantly reduced by Δχall2=-6.76 in the redshift-binned dark energy model where the 68% limits of the equation of state of dark energy read w(0≤z≤0.1)=-1.958-0.508+0.509, w(0.1<z≤1.5)=-1.006-0.082+0.092, and here w(z>1.5) is fixed to -1.