Null test of the cosmic curvature using H(z) and supernovae data
文献类型：期刊论文
| 作者 | 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.
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2016 |
| 卷号 | 93期号:4页码:43517 |
| DOI | http://dx.doi.org/10.1103/PhysRevD.93.043517 |
| 英文摘要 | 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. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21765]  |
| 专题 | 理论物理研究所_理论物理所1978-2010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. |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。