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Lu, BQ; Wu, YL
Constraining primordial black holes in dark matter with kinematics of dwarf galaxies
发表期刊PHYSICAL REVIEW D
语种英语
关键词N-BODY SIMULATIONS ANISOTROPIC VELOCITY DISTRIBUTIONS FOKKER-PLANCK MODELS STAR-CLUSTERS GLOBULAR-CLUSTERS DYNAMIC PROPERTIES MASSES STATISTICS PARAMETERS DISPERSION
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.
2019
ISSN2470-0010
卷号99期号:12页码:123023
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.99.123023
收录类别SCIE
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/23404
专题SCI期刊论文
作者单位1.[Lu, Bo-Qiang
2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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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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