Cosmic age test in inhomogeneous cosmological models mimicking Lambda CDM on the light cone
文献类型：期刊论文
| 作者 | Lan, Mi-Xiang; Li, Miao ; Li, Xiao-Dong; Wang, Shuang; Lan, MX , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2010 |
| 卷号 | 82期号:2页码:- |
| ISSN号 | 1550-7998 |
| 关键词 | Holographic Dark Energy Digital Sky Survey Globular-cluster Messier-4 Constant Constraints Supernovae Sequence Distance Universe Omega |
| 英文摘要 | The possibility of reconstructing a spherically symmetric inhomogeneous Lemaitre-Tolman-Bondi (LTB) model with Lambda CDM observations has drawn much attention. Recently, an inhomogeneous LTB model having the same luminosity-distance and light-cone mass density of the homogeneous Lambda CDM model was reconstructed. From the Wilkinson microwave anisotropy probe 7-year measurements together with other cosmological observations, we calculate the cosmic age at our position in this LTB model, and obtain a constraint t(LTB) < 11.7 Gyr at 1 sigma confidence level. We find that this result is, although 2 Gyr younger compared with the age of the homogeneous Lambda CDM model, still within 1 sigma agreement with the constraint of cosmic age given by current astronomical measurements. We expect that in the future, with the help of more advanced observations, we can distinguish the reconstructed inhomogeneous LTB model from the homogeneous Lambda CDM model. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000280067700003 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5076]  |
| 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 | Lan, MX , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lan, Mi-Xiang,Li, Miao,Li, Xiao-Dong,et al. Cosmic age test in inhomogeneous cosmological models mimicking Lambda CDM on the light cone[J]. PHYSICAL REVIEW D,2010,82(2):-. |
| APA | Lan, Mi-Xiang,Li, Miao,Li, Xiao-Dong,Wang, Shuang,&Lan, MX , Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China.(2010).Cosmic age test in inhomogeneous cosmological models mimicking Lambda CDM on the light cone.PHYSICAL REVIEW D,82(2),-. |
| MLA | Lan, Mi-Xiang,et al."Cosmic age test in inhomogeneous cosmological models mimicking Lambda CDM on the light cone".PHYSICAL REVIEW D 82.2(2010):-. |
入库方式： OAI收割
来源：理论物理研究所
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