Model-independent determination on H 0 using the latest cosmic chronometer data

Abstract

We perform the updated constraints on the Hubble constant H 0 by using the model-independent method, Gaussian processes. Utilizing the latest 30 cosmic chronometer measurements, we obtain H 0 = 67.38 ± 4.72 km s−1 Mpc−1, which is consistent with the Planck 2015 and Riess et al. analysis at 1σ confidence level. Different from the results of Busti et al. by only using 19 H(z) measurements, our reconstruction results of H(z) and the derived values of H 0 are insensitive to the concrete choice of covariance functions of Matern family.