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Zhang, Xue; Huang, Qing-Guo
Constraints on H-0 from WMAP and BAO Measurements
AbstractWe report the constraints of H-0 obtained from Wilkinson Microwave Anisotropy Probe (WMAP) 9-year data combined with the latest baryonic acoustic oscillations (BAO) measurements. We use the BAO measurements from 6dF Galaxy Survey (6dFGS), the SDSS DR7 main galaxies sample (MGS), the BOSS DR12 galaxies, and the eBOSS DR14 quasars. Adding the recent BAO measurements to the cosmic microwave background (CMB) data from WMAP, we constrain cosmological parameters Omega(m) = 0.298 +/- 0.005, H-0 = 68.36(-0.52)(+0.53) km . s(-1). Mpc(-1), sigma(8) = 0.8170(-0.0175)(+0.0159) in a spatially flat Lambda cold dark matter (Lambda CDM) model, and Omega(m) = 0.302 +/- 0.008, H-0 = 67.63 +/- 1.30 km . s(-1) . Mpc(-1), sigma(8) = 0.7988(-0.0338)(+)(0.0345)( )in a spatially flat omega CDM model, respectively. Our measured H-0 results prefer a value lower than 70 km . s(-1). Mpc(-1), consistent with the recent data on CMB constraints from Planck (2018), but in 3.1 and 3.5 sigma tension with local measurements of SH0ES (2018) in Lambda CDM and omega CDM framework, respectively. Our results indicate that there is a systematic tension on the Hubble constant between SHOES and the combination of CMB and BAO datasets.
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Multidisciplinary
Indexed BySCIE
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.[Zhang, Xue
2.Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, Yangzhou 225009, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
5.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xue,Huang, Qing-Guo. Constraints on H-0 from WMAP and BAO Measurements[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2019,71(7):826-830.
APA Zhang, Xue,&Huang, Qing-Guo.(2019).Constraints on H-0 from WMAP and BAO Measurements.COMMUNICATIONS IN THEORETICAL PHYSICS,71(7),826-830.
MLA Zhang, Xue,et al."Constraints on H-0 from WMAP and BAO Measurements".COMMUNICATIONS IN THEORETICAL PHYSICS 71.7(2019):826-830.
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