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论文类型：期刊论文

发表时间：2017-11-10

发表刊物：ASTROPHYSICAL JOURNAL

收录刊物：SCIE

卷号：849

期号：2

ISSN号：0004-637X

关键字：cosmological parameters; distance scale; large-scale structure of universe

摘要：We perform a measurement of the Hubble constant, H-0, using the latest baryonic acoustic oscillation (BAO) measurements from galaxy surveys of 6dFGS, SDSS DR7 Main Galaxy Sample, BOSS DR12 sample, and eBOSS DR14 quasar sample, in the framework of a flat Lambda CDM model. Based on the Kullback-Leibler divergence, we examine the consistency of H-0 values derived from various data sets. We find that our measurement is consistent with that derived from Planck and with the local measurement of H-0 using the Cepheids and type Ia supernovae. We perform forecasts on H-0 from future BAO measurements, and find that the uncertainty of H-0 determined by future BAO data alone, including complete eBOSS, DESI, and Euclid-like, is comparable with that from local measurements.