The abundance of new kind of dark-matter structures
文献类型：期刊论文
| 作者 | Yang, Yupeng1,2; Chen, Xuelei3 ; Lu, Tan1,2,4; Zong, Hongshi1,2
|
| 刊名 | EUROPEAN PHYSICAL JOURNAL PLUS
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 126期号:12 |
| 英文摘要 | 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000300244400010 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7997]  |
| 专题 | 国家天文台_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 |
| 推荐引用方式 GB/T 7714 | 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). |
入库方式： OAI收割
来源：国家天文台
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