基于伽马射线的类轴子粒子探测及暗物质子晕搜寻研究  

Probe Axion-like Particles(ALPs)and Search for Dark Matter Subhalo with the Gamma-ray Observations

作　　者：夏子晴 XIA Zi-qing(Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023)

机构地区：[1]中国科学院紫金山天文台,南京210023

出　　处：《天文学报》2021年第2期110-112,共3页Acta Astronomica Sinica

摘　　要：目前已经有很多观测证据表明宇宙中存在着大量暗物质,其能量密度占据了目前宇宙总能量密度的1/4.根据高精度的数值模拟和引力透镜观测,我们已经对从矮星系到星系团中的暗物质空间分布有了较好的理解,但是对于暗物质究竟是什么我们还一无所知.由此,物理学家提出了很多假想的粒子模型.The presence of a large amount of dark matter(DM)in the Universe has already been convincingly established.DM is believed to make up a quarter of the energy density of the current Universe.Thanks to high-resolution numerical simulations made possible by modern supercomputers and the gravitational lensing observations,the distribution of DM in structures ranging from dwarf galaxies to clusters of galaxies has been understood better than before.But the nature of DM remains unknown.

关 键 词：暗物质 星系团 伽马射线 能量密度 引力透镜 矮星系 粒子模型 粒子探测 

分 类 号：P145.9[天文地球—天体物理]