热门
Cosmological constraints on new agegraphic dark energy
文献类型：期刊论文
| 作者 | Wei, Hao; Cai, Rong-Gen ; Wei, H , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2008 |
| 卷号 | 663期号:40910页码:1-6 |
| 关键词 | Karolyhazy Uncertainty Relation Essence Supernova Survey Observational h(z) Data Probe Wmap Observations Digital Sky Survey Hubble Constant Space-time Holographic Foam Models Parameter |
| ISSN号 | 0370-2693 |
| 英文摘要 | In this work, we consider the cosmological constraints on the new agegraphic dark energy (NADE) proposed in arXiv: 0708.0884, by using the observational data of type la supernovae (SNIa), the shift parameter from cosmic microwave background (CMB) and the baryon acoustic oscillation (BAO) peak from large scale structures (LSS). Thanks to its special analytic features in the radiation-dominated and matter-dominated epochs, NADE is a single-para meter model in practice because once the single model parameter n is given, all other physical quantities of NADE can be determined correspondingly. The joint analysis gives the best-fit value (with 1 sigma uncertainty) n = 2.716(-0.109)(+0.111) and the derived Omega(m0), Omega(q0) and w(q0) (with 1 sigma uncertainties) are 0.295(-0.020)(+0.020), 0.705(-0.020)(+0.020) and 0.794(-0.005)(+0.006), respectively. In addition, we find that the coincidence problem could be solved naturally in the NADE model provided that n is of order unity. (C) 2008 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000256744300001 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5534]  |
| 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 | Wei, H , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Hao,Cai, Rong-Gen,Wei, H , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. Cosmological constraints on new agegraphic dark energy[J]. PHYSICS LETTERS B,2008,663(40910):1-6. |
| APA | Wei, Hao,Cai, Rong-Gen,&Wei, H , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.(2008).Cosmological constraints on new agegraphic dark energy.PHYSICS LETTERS B,663(40910),1-6. |
| MLA | Wei, Hao,et al."Cosmological constraints on new agegraphic dark energy".PHYSICS LETTERS B 663.40910(2008):1-6. |
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。