An accurate determination of the Hubble constant from Baryon Acoustic Oscillation datasets
Cosmology and Nongalactic Astrophysics2015-07-14v1General Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory
Even though the Hubble constant cannot be significantly determined by the low-redshift Baryon Acoustic Oscillation (BAO) data alone, it can be tightly constrained once the high-redshift BAO data are combined. Combining BAO data from 6dFGS, BOSS DR11 clustering of galaxies, WiggleZ and z=2.34 from BOSS DR11 quasar Lyman-α forest lines, we get H0=68.17−1.56+1.55 km s−1 Mpc−1. In addition, adopting the the simultaneous measurements of H(z) and DA(z) from the two-dimensional two-point correlation function from BOSS DR9 CMASS sample and two-dimensional matter power spectrum from SDSS DR7 sample, we obtain H0=68.11±1.69 km s−1 Mpc−1. Finally, combining all of the BAO datasets, we conclude H0=68.11±0.86 km s−1 Mpc−1, a 1.3% determination.
@article{arxiv.1409.6119,
title = {An accurate determination of the Hubble constant from Baryon Acoustic Oscillation datasets},
author = {Cheng Cheng and Qing-Guo Huang},
journal= {arXiv preprint arXiv:1409.6119},
year = {2015}
}