中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所2014年知识产出  > 期刊论文
题名: EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION
作者: Wang, JX ;  Meng, XH
刊名: MODERN PHYSICS LETTERS A
出版日期: 2014
卷号: 29, 期号:3, 页码:1450009
关键词: BARYON ACOUSTIC-OSCILLATIONS ;  PARAMETER MEASUREMENT CONSTRAINTS ;  DARK ENERGY ;  BULK VISCOSITY ;  REDSHIFT ;  EQUATION ;  STATE
学科分类: Physics
DOI: 10.1142/S0217732314500096
通讯作者: Wang, JX (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
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
英文摘要: 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.
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]
收录类别: SCI
原文出处: 查看原文
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15494
Appears in Collections:理论物理所2014年知识产出 _期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION.pdf(274KB)----开放获取View Download

Recommended Citation:
Wang, JX,Meng, XH. EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION[J]. MODERN PHYSICS LETTERS A,2014,29(3):1450009.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wang, JX]'s Articles
 [Meng, XH]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wang, JX]‘s Articles
 [Meng, XH]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: EFFECTS OF NEW VISCOSITY MODEL ON COSMOLOGICAL EVOLUTION.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace