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The abundance of new kind of dark-matter structures
Yang, Yupeng1,2; Chen, Xuelei3; Lu, Tan1,2,4; Zong, Hongshi1,2
2011-12-01
发表期刊EUROPEAN PHYSICAL JOURNAL PLUS
卷号126期号:12
摘要A new kind of dark-matter structures, ultracompact minihalos (UCMHs) was proposed recently. They would be formed during the radiation-dominated epoch if large density perturbations are present. Moreover, if the dark matter is made up of weakly interacting massive particles, the UCMHs can have effect on cosmological evolution because of the high density and dark-matter annihilation within them. In this paper, one new parameter is introduced to consider the contributions of UCMHs due to the dark-matter annihilation to the evolution of cosmology, and we use the current and future CMB observations to obtain the constraint on the new parameter and then the abundance of UCMHs. The final results are applicable for a wider range of dark-matter parameters.
DOI10.1140/epjp/i2011-11123-8
收录类别SCI
语种英语
WOS记录号WOS:000300244400010
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7997
专题星系宇宙学研究部
作者单位1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
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Yang, Yupeng,Chen, Xuelei,Lu, Tan,et al. The abundance of new kind of dark-matter structures[J]. EUROPEAN PHYSICAL JOURNAL PLUS,2011,126(12).
APA Yang, Yupeng,Chen, Xuelei,Lu, Tan,&Zong, Hongshi.(2011).The abundance of new kind of dark-matter structures.EUROPEAN PHYSICAL JOURNAL PLUS,126(12).
MLA Yang, Yupeng,et al."The abundance of new kind of dark-matter structures".EUROPEAN PHYSICAL JOURNAL PLUS 126.12(2011).
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