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题名: A Specific Case of Generalized Einstein-aether Theories
作者: Meng, XH ;  Du, XL
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2012
卷号: 57, 期号:2, 页码:227-233
关键词: COSMOLOGICAL CONSTANT ;  PALATINI FORMULATION ;  MODIFIED GRAVITY ;  R-1-MODIFIED GRAVITY ;  HUBBLE CONSTANT ;  DARK ENERGY ;  UNIVERSE ;  CONSTRAINTS ;  SUPERNOVAE ;  PARAMETER
学科分类: Physics
通讯作者: Meng, XH (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
部门归属: [Meng Xin-He; Du Xiao-Long] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; [Du Xiao-Long] Lanzhou Univ, Dept Phys, Lanzhou 730000, Peoples R China; [Meng Xin-He] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
英文摘要: With the dark energy phenomena explored over a decade, in this present work we discuss a specific case of the generalized Einstein-aether theories, in which the modified Friedmann equation is similar to that in the Dvali-Gabadadze-Porrati (DGP) brane world model. We compute the joint statistic constraints on model parameters in this specific case by using the recent type Ia supernovae (SNe Ia) data, the cosmic microwave background (CMB) shift parameter data, and the baryonic acoustic oscillations (BAOs) data traced by the Sloan Digital Sky Survey (SDSS). Furthermore, we analyze other constrains from the observational Hubble parameter data (OHD). The comparison with the standard cosmological model (cosmological constant A cold dark matter (ACDM) model) is clearly shown; also we comment on the interesting relation between the coupling constant M in this model and the special accelerate scale in the modified Newtonian dynamics (MOND) model initially given by Milgrom with the hope for interpreting the galaxy rotation curves without introducing mysterious dark matter.
资助者: Natural Science Foundation of China [11075078, 10675062]; (PKIP) of Chinese Academy of Sciences (CAS) through the KITPC [KJCX2.YW.W10]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000300611500012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15173
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Meng, XH,Du, XL. A Specific Case of Generalized Einstein-aether Theories[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2012,57(2):227-233.
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