ITP OpenIR  > SCI期刊论文
Wang, S; Hu, YZ; Li, M; Wang, S (reprint author), Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China.
Cosmological mplications of different baryon acoustic oscillation data
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
Language英语
KeywordCosmology Dark Energy Observations Cosmological Parameters
AbstractIn this work, we explore the cosmological implications of different baryon acoustic oscillation (BAO) data, including the BAO data extracted by using the spherically averaged one-dimensional galaxy clustering (GC) statistics (hereafter BAO1) and the BAO data obtained by using the anisotropic two-dimensional GC statistics (hereafter BAO2). To make a comparison, we also take into account the case without BAO data (hereafter NO BAO). Firstly, making use of these BAO data, as well as the SNLS3 type Ia supernovae sample and the Planck distance priors data, we give the cosmological constraints of the ?CDM, the wCDM, and the Chevallier-Polarski-Linder (CPL) model. Then, we discuss the impacts of different BAO data on cosmological consquences, including its effects on parameter space, equation of state (EoS), figure of merit (FoM), deceleration-acceleration transition redshift, Hubble parameter H(z), deceleration parameter q(z), statefinder hierarchy S(1)3(z), S(1)4(z) and cosmic age t(z). We find that: (1) NO BAO data always give a smallest fractional matter density ?m0, a largest fractional curvature density ?k0 and a largest Hubble constant h; in contrast, BAO1 data always give a largest ?m0, a smallest ?k0 and a smallest h. (2) For the wCDM and the CPL model, NO BAO data always give a largest EoS w; in contrast, BAO2 data always give a smallest w. (3) Compared with the case of BAO1, BAO2 data always give a slightly larger FoM, and thus can give a cosmological constraint with a slightly better accuracy. (4) The impacts of different BAO data on the cosmic evolution and the comic age are very small, and can not be distinguished by using various dark energy diagnosis and the cosmic age data.
2017
Volume60Issue:4Pages:40411
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1007/s11433-016-0486-6
Funding OrganizationNational Natural Science Foundation of China [11405024, 11275247, 11335012] ; National Natural Science Foundation of China [11405024, 11275247, 11335012] ; National Natural Science Foundation of China [11405024, 11275247, 11335012] ; National Natural Science Foundation of China [11405024, 11275247, 11335012] ; Fundamental Research Funds for the Central Universities [16lgpy50] ; Fundamental Research Funds for the Central Universities [16lgpy50] ; Fundamental Research Funds for the Central Universities [16lgpy50] ; Fundamental Research Funds for the Central Universities [16lgpy50] ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University ; 985 grant at Sun Yat-Sen University
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22096
CollectionSCI期刊论文
Corresponding AuthorWang, S (reprint author), Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China.
Recommended Citation
GB/T 7714
Wang, S,Hu, YZ,Li, M,et al. Cosmological mplications of different baryon acoustic oscillation data[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2017,60(4):40411.
APA Wang, S,Hu, YZ,Li, M,&Wang, S .(2017).Cosmological mplications of different baryon acoustic oscillation data.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,60(4),40411.
MLA Wang, S,et al."Cosmological mplications of different baryon acoustic oscillation data".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 60.4(2017):40411.
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