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Wei, Hao; Cai, Rong-Gen![]() | |
Cosmological constraints on new agegraphic dark energy | |
发表期刊 | PHYSICS LETTERS B
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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 |
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. |
2008 | |
ISSN | 0370-2693 |
卷号 | 663期号:40910页码:1-6 |
学科领域 | Physics |
收录类别 | SCI |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/5534 |
专题 | 理论物理所科研产出_SCI论文 |
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. |
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