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题名: Viscous Ricci dark energy
作者: Feng, Chao-Jun ;  Li, Xin-Zhou
刊名: PHYSICS LETTERS B
出版日期: 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
学科分类: Physics
通讯作者: Feng, CJ , Shanghai Normal Univ, SUCA, 100 Guilin Rd, Shanghai 200234, Peoples R China
部门归属: [Feng, CJ; Li, XZ] Shanghai Normal Univ, SUCA, Shanghai 200234, Peoples R China; [Feng, CJ] Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
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.
资助者: National Science Foundation of China[10847153, 10671128]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000271360100011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5228
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Feng, Chao-Jun,Li, Xin-Zhou. Viscous Ricci dark energy[J]. PHYSICS LETTERS B,2009,680(4):355-358.
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