ITP OpenIR  > SCI期刊论文
Cai, RG; Guo, ZK; Yang, T; Yang, T (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Null test of the cosmic curvature using H(z) and supernovae data
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractWe introduce a model-independent approach to the null test of the cosmic curvature, which is geometrically related to the Hubble parameter H(z) and luminosity distance d(L)(z). Combining the independent observations of H(z) and d(L)(z), we use the model-independent smoothing technique, Gaussian processes, to reconstruct them and determine the cosmic curvature Omega((0))(K) in the null test relation. The null test is totally geometrical and does not assume any cosmological model. We show that the cosmic curvature Omega((0))(K) = 0 is consistent with current observational data sets, falling within the 1 sigma limit. To demonstrate the effect on the precision of the null test, we produce a series of simulated data of the models with different Omega((0))(K) . Future observations in better quality can provide a greater improvement to constrain or refute the flat universe with Omega((0))(K) = 0.
2016
Volume93Issue:4Pages:43517
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.043517
Indexed BySCI
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ; National Natural Science Foundation of China [11575272, 11335012] ; National Natural Science Foundation of China [11575272, 11335012] ; National Natural Science Foundation of China [11575272, 11335012] ; National Natural Science Foundation of China [11575272, 11335012]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21765
CollectionSCI期刊论文
Corresponding AuthorCai, RG; Guo, ZK; Yang, T (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Cai, RG,Guo, ZK,Yang, T,et al. Null test of the cosmic curvature using H(z) and supernovae data[J]. PHYSICAL REVIEW D,2016,93(4):43517.
APA Cai, RG,Guo, ZK,Yang, T,&Yang, T .(2016).Null test of the cosmic curvature using H(z) and supernovae data.PHYSICAL REVIEW D,93(4),43517.
MLA Cai, RG,et al."Null test of the cosmic curvature using H(z) and supernovae data".PHYSICAL REVIEW D 93.4(2016):43517.
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