An accurate determination of the Hubble constant from baryon acoustic oscillation datasets
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Even though the Hubble constant cannot be significantly determined just by the low-redshift Baryon Acoustic Oscillation (BAO) data, it can be tightly constrained once the high-redshift BAO data are combined. We combined BAO data from 6dFGS, BOSS DR11 clustering of galaxies, WiggleZ and z = 2.34 from BOSS DR11 quasar Lyman-α forest lines to get H 0 = 68.17 -1.56 +1.55 km s-1 Mpc-1. In addition, we adopted the simultaneous measurements of H(z) and D A (z) from the two-dimensional two-point correlation function from BOSS DR9 CMASS sample and two-dimensional matter power spectrum from SDSS DR7 sample to obtain H 0 = (68.11 ± 1.69) km s-1 Mpc-1. Finally, combining all of the BAO datasets, we conclude that H 0 = (68.11 ± 0.86) km s-1 Mpc-1, a 1.3% determination.
KeywordsHubble constant baryon acoustic oscillation large-scale structure
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