Constraining primordial black holes in dark matter with kinematics of dwarf galaxies
文献类型：期刊论文
| 作者 | Lu, BQ; Wu, YL
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2019 |
| 卷号 | 99期号:12页码:123023 |
| 关键词 | N-BODY SIMULATIONS ANISOTROPIC VELOCITY DISTRIBUTIONS FOKKER-PLANCK MODELS STAR-CLUSTERS GLOBULAR-CLUSTERS DYNAMIC PROPERTIES MASSES STATISTICS PARAMETERS DISPERSION |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.99.123023 |
| 英文摘要 | We propose that the kinematical observations of dwarf galaxies can be used to constrain the primordial black hole's (PBH) abundance in dark matter since the presence of primordial black holes in star clusters will lead to the radial velocity dispersion of the system. For instance, using the velocity dispersion observations from Leo I we show that the primordial black hole fraction f(PBH) greater than or similar to 2.0 x (1 M-circle dot/m(PBH))(2) is ruled out at a 99.99% confidence level. This method yields the most stringent limits on the PBH abundance at the mass scales similar to(1 - 10(3)) M-circle dot and tightly constrains the primordial origin of gravitational wave events observed by the LIGO experiments. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23404]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.[Lu, Bo-Qiang 4.Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan |
| 推荐引用方式 GB/T 7714 | Lu, BQ,Wu, YL. Constraining primordial black holes in dark matter with kinematics of dwarf galaxies[J]. PHYSICAL REVIEW D,2019,99(12):123023. |
| APA | Lu, BQ,&Wu, YL.(2019).Constraining primordial black holes in dark matter with kinematics of dwarf galaxies.PHYSICAL REVIEW D,99(12),123023. |
| MLA | Lu, BQ,et al."Constraining primordial black holes in dark matter with kinematics of dwarf galaxies".PHYSICAL REVIEW D 99.12(2019):123023. |
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来源：理论物理研究所
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