ITP OpenIR  > 理论物理所2016年知识产出
Null test of the cosmic curvature using H(z) and supernovae data
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.
2016
发表期刊PHYSICAL REVIEW D
卷号93期号:4页码:43517
文章类型Article
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.
学科领域Astronomy & Astrophysics ; Physics
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] ; National Natural Science Foundation of China [11575272, 11335012] ; National Natural Science Foundation of China [11575272, 11335012] ; 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]
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.043517
关键词[WOS]LUMINOUS RED GALAXIES ; DARK ENERGY SURVEY ; HUBBLE PARAMETER ; CONSTRAINTS ; CHRONOMETERS ; EXPANSION ; UNIVERSE ; GROWTH
收录类别SCI
语种英语
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] ; National Natural Science Foundation of China [11575272, 11335012] ; National Natural Science Foundation of China [11575272, 11335012] ; 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]
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
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2016年知识产出
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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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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