Knowledge Management System of Institute of Theoretical Physics, CAS
Wei, Hao; Cai, Rong-Gen ; Wei, H , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
| |
| Cosmological constraints on new agegraphic dark energy | |
| Source Publication | PHYSICS LETTERS B
 |
| Keyword | Karolyhazy Uncertainty Relation Essence Supernova Survey Observational h(z) Data Probe Wmap Observations Digital Sky Survey Hubble Constant Space-time Holographic Foam Models Parameter |
| Abstract | 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 |
| Volume | 663Issue:40910Pages:1-6 |
| Subject Area | Physics |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/5534 |
| Collection | 理论物理所科研产出_SCI论文 |
| Corresponding Author | Wei, H , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Cosmological constra（219KB） | 开放获取 | License | Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment