ITP OpenIR  > 理论物理所2014年知识产出
EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION
Wang, JX; Meng, XH; Wang, JX (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
2014
发表期刊MODERN PHYSICS LETTERS A
ISSN0217-7323
卷号29期号:3页码:1450009
摘要Bulk viscosity has been intrinsically existing in the observational cosmos evolution With various effects for different cosmological evolution stages endowed with complicated cosmic media. Normally in the idealised "standard cosmology", the physical viscosity effect Is often negligent to some extent by assumptions, except for galaxies formation and evolution or like the astro-physics phenomena. Actually we have not fully understood the physical origin and effects of cosmic viscosity, including its functions for the universe evolution in reality. In this paper, we extend the concept of temperature-dependent viscosity from classical statistical physics to observational cosmology, especially we examine the cosmological effects with the possibility of existence for two kinds of viscosity forms, which are described by the Chapman's relation and Sutherland's formula, respectively. By considering that a modification of Standard Model with viscosity named as ACDM-V model is constructed, which is acceptable according to astrophysical observations. In addition to the enhancement to cosmic age value, the ACDM-V model possesses other two pleasing features: the prediction about the no-rip/singularity future and the mechanism of smooth transition from imperfect cosmological models to perfect ones.
部门归属[Wang, Jiaxin; Meng, Xinhe] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; [Meng, Xinhe] Chinese Acad Sci, Kavali Inst Theoret Phys China, Beijing 100190, Peoples R China
关键词Baryon Acoustic-oscillations Parameter Measurement Constraints Dark Energy Bulk Viscosity Redshift Equation State
学科领域Physics
资助者Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10]
DOI10.1142/S0217732314500096
URL查看原文
收录类别SCI
语种英语
资助者Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; project of knowledge Innovation Program (PKIP) of Chinese Academy of Sciences (CAS) [KJCX2.YW.W10]
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被引频次:13[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/311006/15494
专题理论物理所2014年知识产出
通讯作者Wang, JX (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
推荐引用方式
GB/T 7714
Wang, JX,Meng, XH,Wang, JX . EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION[J]. MODERN PHYSICS LETTERS A,2014,29(3):1450009.
APA Wang, JX,Meng, XH,&Wang, JX .(2014).EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION.MODERN PHYSICS LETTERS A,29(3),1450009.
MLA Wang, JX,et al."EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION".MODERN PHYSICS LETTERS A 29.3(2014):1450009.
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