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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
发表期刊PHYSICAL REVIEW D
语种英语
摘要We 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
卷号93期号:4页码:43517
学科领域Astronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.043517
收录类别SCI
项目资助者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] ; 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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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21765
专题理论物理所科研产出_SCI论文
通讯作者Cai, 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.
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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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