Constraints on a phi CDM model from strong gravitational lensing and updated Hubble parameter measurements
文献类型：期刊论文
| 作者 | Chen, Yun1,2,4 ; Geng, Chao-Qiang1,2; Cao, Shuo3; Huang, Yu-Mei3; Zhu, Zong-Hong3
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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| 出版日期 | 2015-02-01 |
| 期号 | 2 |
| 关键词 | weak gravitational lensing dark energy theory |
| 英文摘要 | We constrain the scalar field dark energy model with an inverse power-law potential, i.e., V(phi) proportional to phi(-alpha) (alpha > 0), from a set of recent cosmological observations by compiling an updated sample of Hubble parameter measurements including 30 independent data points. Our results show that the constraining power of the updated sample of H (z) data with the HST prior on H-0 is stronger than those of the SCP Union2 and Union2.1 compilations. A recent sample of strong gravitational lensing systems is also adopted to cofine the model even though the results are not significant. A joint analysis of the strong gravitational lensing data with the more restrictive updated Hubble parameter measurements and the Type Ia supernovae data from SCP Union2 indicates that the recent observations still can not distinguish whether dark energy is a time-independent cosmological constant or a time-varying dynamical component. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000351502100011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5746]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan 2.Natl Ctr Theoret Sci, Hsinchu 300, Taiwan 3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 4.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yun,Geng, Chao-Qiang,Cao, Shuo,et al. Constraints on a phi CDM model from strong gravitational lensing and updated Hubble parameter measurements[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2015(2). |
| APA | Chen, Yun,Geng, Chao-Qiang,Cao, Shuo,Huang, Yu-Mei,&Zhu, Zong-Hong.(2015).Constraints on a phi CDM model from strong gravitational lensing and updated Hubble parameter measurements.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(2). |
| MLA | Chen, Yun,et al."Constraints on a phi CDM model from strong gravitational lensing and updated Hubble parameter measurements".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .2(2015). |
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来源：国家天文台
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