English

Model-independent determination on $H_0$ using the latest $H(z)$ data

General Relativity and Quantum Cosmology 2016-10-06 v1 Cosmology and Nongalactic Astrophysics

Abstract

We perform the improved constraints on the Hubble constant H0H_0 by using the model-independent method, Gaussian Processes. Utilizing the latest 36 H(z)H(z) measurements, we obtain H0=69.21±3.72H_0=69.21\pm3.72 km s1^{-1} Mpc1^{-1}, which is consistent with the Planck 2015 and Riess et al. 2016 analysis at 1σ1\sigma confidence level, and reduces the uncertainty from 6.5%6.5\% (Busti et al. 2014) to 5.4%5.4\%. Different from the results of Busti et al. 2014 by only using 19 H(z)H(z) measurements, our reconstruction results of H(z)H(z) and the derived values of H0H_0 are independent of the choice of covariance functions.

Keywords

Cite

@article{arxiv.1610.01202,
  title  = {Model-independent determination on $H_0$ using the latest $H(z)$ data},
  author = {Deng Wang and Xin-He Meng},
  journal= {arXiv preprint arXiv:1610.01202},
  year   = {2016}
}