宇宙线的观测研究和暗物质粒子的间接探测是高能天体物理领域两个重大研究课题.自1912年V.Hess发现宇宙线开始,人类对宇宙线的观测历史已经超过了一个世纪,传统理论模型预言"膝"区以下能段的宇宙线能谱应服从单一幂率分布,而...宇宙线的观测研究和暗物质粒子的间接探测是高能天体物理领域两个重大研究课题.自1912年V.Hess发现宇宙线开始,人类对宇宙线的观测历史已经超过了一个世纪,传统理论模型预言"膝"区以下能段的宇宙线能谱应服从单一幂率分布,而近些年的空间和高空气球实验表明10 Ge V–100 Te V的宇宙线质子能谱可能存在偏离单一幂律谱分布的重要结构,这对研究银河系内宇宙线的起源、传播和加速机制具有重要意义.另一方面,得益于宇宙线和伽马射线观测精度的提高和观测能段的拓宽。展开更多
The purpose of this experiment is to investigate the dynamics of the intensity of cosmic ray flows and to obtain the energy spectrum of solar cosmic rays according to the data of measurements of neutron monitors at th...The purpose of this experiment is to investigate the dynamics of the intensity of cosmic ray flows and to obtain the energy spectrum of solar cosmic rays according to the data of measurements of neutron monitors at the height of 3,340, 1,700, 800 meters above the sea level. Also the estimation of energy spectrum of cosmic rays flows during the disturbances of solar activity （GLE） was made.展开更多
The observations of Ultra High Energy Cosmic Rays （UHECR） are renewed, focusing on the energy spectra as measured by HiRes, Telescope Array （TA） and Auger detectors （PAO）. It is found that highest energy Auger s...The observations of Ultra High Energy Cosmic Rays （UHECR） are renewed, focusing on the energy spectra as measured by HiRes, Telescope Array （TA） and Auger detectors （PAO）. It is found that highest energy Auger steepening does not agree with GZK cutoff, which is most probably explained by the nuclei mass composition detected by Auger. At present the difference in mass composition in Auger and HiRes/TA data remains the main unsolved problem of UHECR origin.展开更多
文摘宇宙线的观测研究和暗物质粒子的间接探测是高能天体物理领域两个重大研究课题.自1912年V.Hess发现宇宙线开始,人类对宇宙线的观测历史已经超过了一个世纪,传统理论模型预言"膝"区以下能段的宇宙线能谱应服从单一幂率分布,而近些年的空间和高空气球实验表明10 Ge V–100 Te V的宇宙线质子能谱可能存在偏离单一幂律谱分布的重要结构,这对研究银河系内宇宙线的起源、传播和加速机制具有重要意义.另一方面,得益于宇宙线和伽马射线观测精度的提高和观测能段的拓宽。
文摘The purpose of this experiment is to investigate the dynamics of the intensity of cosmic ray flows and to obtain the energy spectrum of solar cosmic rays according to the data of measurements of neutron monitors at the height of 3,340, 1,700, 800 meters above the sea level. Also the estimation of energy spectrum of cosmic rays flows during the disturbances of solar activity （GLE） was made.
文摘The observations of Ultra High Energy Cosmic Rays （UHECR） are renewed, focusing on the energy spectra as measured by HiRes, Telescope Array （TA） and Auger detectors （PAO）. It is found that highest energy Auger steepening does not agree with GZK cutoff, which is most probably explained by the nuclei mass composition detected by Auger. At present the difference in mass composition in Auger and HiRes/TA data remains the main unsolved problem of UHECR origin.
