Confronting dark energy anisotropic stress
文献类型：期刊论文
| 作者 | Chang, BR ; Xu, LX |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2014 |
| 卷号 | 90期号:2页码:27301 |
| 关键词 | BARYON ACOUSTIC-OSCILLATIONS HUBBLE CONSTANT GROWTH-RATE GALAXY MATTER |
| ISSN号 | 1550-7998 |
| 通讯作者 | Xu, LX (reprint author), Dalian Univ Technol, Sch Phys & Optoelect Technol, Inst Theoret Phys, Dalian 116024, Peoples R China. |
| 英文摘要 | We use currently available cosmic observations to probe and constrain an imperfect dark-energy fluid that is characterized by a constant equation of state w and a constant speed of viscosity c(vis)(2). The model parameter space was scanned using the Markov chain Monte Carlo method. The results show that the speed of viscosity c(vis)(2) was not well constrained when currently available data sets are used (including the cosmic microwave background radiation from Planck-2013 and WMAP9, type Ia supernovae, baryon acoustic oscillations, redshift space distortion f sigma(8)(z), and gravitational weak lensing from Canada-France Hawaii Telescope Lensing Survey (CFHTLenS). However, the cosmic data sets slightly favor phantom dark energy with a negative speed of viscosity c(vis)(2). |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | NSFC [11275035]; Fundamental Research Funds for the Central Universities [DUT13LK01] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevD.90.027301 |
| 语种 | 英语 |
| WOS记录号 | WOS:000338500300007 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15714]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Chang, BR,Xu, LX. Confronting dark energy anisotropic stress[J]. PHYSICAL REVIEW D,2014,90(2):27301. |
| APA | Chang, BR,&Xu, LX.(2014).Confronting dark energy anisotropic stress.PHYSICAL REVIEW D,90(2),27301. |
| MLA | Chang, BR,et al."Confronting dark energy anisotropic stress".PHYSICAL REVIEW D 90.2(2014):27301. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。