ITP OpenIR  > 理论物理所2017年知识产出
New cosmological constraints with extended-Baryon Oscillation Spectroscopic Survey DR14 quasar sample
Chen, L; Huang, QG; Wang, K; Chen, L (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Chen, L (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
2017
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号77期号:11页码:762
文章类型Article
摘要We update the constraints on the cosmological parameters by adopting the Planck data released in 2015 and baryon acoustic oscillation (BAO) measurements including the new DR14 quasar sample measurement at redshift z = 1.52, and we conclude that the six-parameter Lambda CDM model is preferred. Exploring some extensions to the Lambda CDM model, we find that the equation of state of dark energy reads w = -1.036 +/- 0.056 in the wCDM model, the effective number of relativistic degrees of freedom in the Universe is N-eff = 3.09(-0.20)(+0.18) in the N-eff + Lambda CDM model and the spatial curvature parameter is Omega(k) = (1.8 +/- 1.9) x 10(-3) in the Omega(k) + Lambda CDM model at 68% confidence level (C.L.), and the 95% C.L. upper bounds on the sum of three active neutrinos masses are Sigma m(v) < 0.16 eV for the normal hierarchy (NH) and Sigma m(v) < 0.19 eV for the inverted hierarchy (IH) with Delta chi(2) =chi(NH) (2) - chi(IH) (2) = -1.25.
学科领域Physics
资助者NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Frontier Sciences, CAS ; Frontier Sciences, CAS ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Frontier Sciences, CAS ; Frontier Sciences, CAS
DOIhttp://dx.doi.org/10.1140/epjc/s10052-017-5344-1
关键词[WOS]ACOUSTIC-OSCILLATIONS ; GALAXIES
语种英语
资助者NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Frontier Sciences, CAS ; Frontier Sciences, CAS ; NSFC [11335012, 11575271, 11690021] ; NSFC [11335012, 11575271, 11690021] ; Top-Notch Young Talents Program of China ; Top-Notch Young Talents Program of China ; Frontier Sciences, CAS ; Frontier Sciences, CAS
WOS类目Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21933
专题理论物理所2017年知识产出
通讯作者Chen, L (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Chen, L (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
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GB/T 7714
Chen, L,Huang, QG,Wang, K,et al. New cosmological constraints with extended-Baryon Oscillation Spectroscopic Survey DR14 quasar sample[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(11):762.
APA Chen, L,Huang, QG,Wang, K,Chen, L ,&Chen, L .(2017).New cosmological constraints with extended-Baryon Oscillation Spectroscopic Survey DR14 quasar sample.EUROPEAN PHYSICAL JOURNAL C,77(11),762.
MLA Chen, L,et al."New cosmological constraints with extended-Baryon Oscillation Spectroscopic Survey DR14 quasar sample".EUROPEAN PHYSICAL JOURNAL C 77.11(2017):762.
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