Cosmological constraints on new agegraphic dark energy

ITP OpenIR > 1978-2010年知识产出

	Cosmological constraints on new agegraphic dark energy
	Wei, Hao; Cai, Rong-Gen; Wei, H , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
	2008
发表期刊	PHYSICS LETTERS B
ISSN	0370-2693
卷号	663 期号:40910 页码:1-6
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.
部门归属	[Wei, H] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Wei, H] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China; [Cai, RG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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
学科领域	Physics
URL	查看原文
收录类别	SCI
WOS记录号	WOS:000256744300001
引用统计	被引频次：132[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/5534
专题	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.

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