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题名: Constraints on dark matter annihilation and its equation of state after Planck data
作者: Xu, LX
刊名: MODERN PHYSICS LETTERS A
出版日期: 2014
卷号: 29, 期号:37, 页码:1440004
关键词: OVERABUNDANCE PROBLEM ;  POWER SPECTRUM ;  LAMBDA-CDM ;  RECOMBINATION ;  MODEL ;  REIONIZATION ;  DAMA/LIBRA ;  SATELLITES ;  GALAXIES ;  IMPACT
学科分类: Physics
DOI: 10.1142/S0217732314400045
通讯作者: Xu, LX (reprint author), Sch Phys & Optoelect Technol, Inst Theoret Phys, Dalian, Peoples R China.
部门归属: [Xu, Lixin] Sch Phys & Optoelect Technol, Inst Theoret Phys, Dalian, Peoples R China ;  [Xu, Lixin] Dalian Univ Technol, Dalian 116024, Peoples R China ;  [Xu, Lixin] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: In this paper, the annihilation of dark matter ( DM) f(d) is an element of(0) with nonzero equation of state ( EoS) w(dm) was studied by using the currently available cosmic observations which include geometric and dynamic measurements. The constrained results show they are anti- correlated and are wdm = 0.000390(+ 0.000754) (- 0.000753) and f(d) is an element of(0) = 1.172(+ 0.243) (- 1.172), respectively in 1s regions. With the inclusion of possible annihilation of DM, no significant deviation from CDM model was found in the 1s region.
资助者: NSFC [11275035]; Fundamental Research Funds for the Central Universities [DUT13LK01]; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF101CJ1]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000345922500005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15547
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Recommended Citation:
Xu, LX. Constraints on dark matter annihilation and its equation of state after Planck data[J]. MODERN PHYSICS LETTERS A,2014,29(37):1440004.
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