Viscous Ricci dark energy

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	Viscous Ricci dark energy
	Feng, Chao-Jun; Li, Xin-Zhou; Feng, CJ , Shanghai Normal Univ, SUCA, 100 Guilin Rd, Shanghai 200234, Peoples R China
刊名	PHYSICS LETTERS B
	2009
卷号	680 期号:4 页码:355-358
关键词	Generalized Chaplygin-gas Equation-of-state Relativistic Theory Infrared Cutoff Brane Cosmology Bulk Thermodynamics Models Nonstationary Statefinder
ISSN号	0370-2693
英文摘要	We investigate the viscous Ricci dark energy (RDE) model by assuming that there is bulk viscosity in the linear barotropic fluid and the RDE. In the RDE model without bulk viscosity, the universe is younger than some old objects at certain redshifts. Since the age of the universe should be longer than any objects living in the universe, the RDE model suffers the age problem, especially when we consider the object APM 08279 + 5255 at z = 3.91 with age t = 2.1 Gyr. In this Letter, we find that once the viscosity is taken into account, this age problem is alleviated. (C) 2009 Elsevier B.V. All rights reserved.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000271360100011
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5228]
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	Feng, CJ , Shanghai Normal Univ, SUCA, 100 Guilin Rd, Shanghai 200234, Peoples R China
推荐引用方式 GB/T 7714	Feng, Chao-Jun,Li, Xin-Zhou,Feng, CJ , Shanghai Normal Univ, SUCA, 100 Guilin Rd, Shanghai 200234, Peoples R China. Viscous Ricci dark energy[J]. PHYSICS LETTERS B,2009,680(4):355-358.
APA	Feng, Chao-Jun,Li, Xin-Zhou,&Feng, CJ , Shanghai Normal Univ, SUCA, 100 Guilin Rd, Shanghai 200234, Peoples R China.(2009).Viscous Ricci dark energy.PHYSICS LETTERS B,680(4),355-358.
MLA	Feng, Chao-Jun,et al."Viscous Ricci dark energy".PHYSICS LETTERS B 680.4(2009):355-358.