Composition of cosmic rays at ultra high energies

机译：超高能量的宇宙射线组成

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We present measurements of the cosmic ray (CR) composition above 1015eV, performed with the Yakutsk extensive air shower array. Almost forty four thousand events above 1017eV observed by Cherenkov detectors areselected for the analysis of the depth of maximum of the longitudinal development of air showers induced by CRs. Theinterpretation of these results in terms of CR mass composition is given. It is shown that mean logarithm of the CR atomicnumber h A() i is characterized by the peak value h ln A i 2.5 achieved at 1017eV and its substantial decreasewithin the energy interval 1017- 1018eV to h ln A i 1 at > 1018eV. Such a behavior has to be considered as indicationfor the transition from galactic CR component, which is produced in galactic supernova remnants, to extragalactic CRcomponent at = 1017-1018eV.

机译：我们介绍了用雅库茨克大型空气淋浴阵列对1015eV以上的宇宙射线（CR）成分进行的测量。选择由Cherenkov探测器观测到的高于1017eV的近4.4万个事件，以分析由CR引起的风淋的最大纵向发展深度。给出了根据CR质量组成对这些结果的解释。结果表明，CR原子序数h A（）i的平均对数的特征在于在1017eV处达到的峰值h ln A i 2.5，并且在大于1018eV的能量区间1017-1018eV到h ln A i 1的范围内大幅降低。这种行为必须被视为指示从银河超新星残余中产生的银河CR成分过渡到= 1017-1018eV的银河外CR成分。

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来源
《Proceedings of the 32nd International Cosmic Ray Conference》|2011年|1-4|共4页
会议地点 Beijing(CN)
作者
E.G.BEREZHKO; S.P.KNURENKO; L.T.KSENOFONTOV; V.K.YELSHIN;
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作者单位

Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy, 31 Lenin Avenue, 677980 Yakutsk, Russia;

Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy, 31 Lenin Avenue, 677980 Yakutsk, Russia;

Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy, 31 Lenin Avenue, 677980 Yakutsk, Russia;

Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy, 31 Lenin Avenue, 677980 Yakutsk, Russia;

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会议组织
原文格式 PDF
正文语种 eng
中图分类宇宙射线强度变化;
关键词
instrumentation; detectors - methods; data analysis - acceleration of particles - cosmic rays - shock waves - ISM; supernova remnants;

机译：仪器仪表检测器-方法；数据分析-粒子加速-宇宙射线-冲击波-ISM；超新星残余;

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1. Ultra-high energy cosmic rays: 40 years retrospective of continuous observations at the Yakutsk array: Part 2. Mass composition of cosmic rays at ultra high energies [J] . Stanislav Knurenko, Igor Petrov EPJ Web of Conferences . 2015,第2期

机译：超高能宇宙射线：雅库茨克阵列连续观测的40年回顾：第2部分。超高能宇宙射线的质量组成
2. HIGH-ENERGY EMISSION INDUCED BY ULTRA-HIGH-ENERGY PHOTONS AS A PROBE OF ULTRA-HIGH-ENERGY COSMIC-RAY ACCELERATORS EMBEDDED IN THE COSMIC WEB [J] . KOHTA MURASE The Astrophysical Journal. Letters . 2012,第2期

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5. Ultra-High Energy Cosmic Rays: Composition, Early Air Shower Interactions, and Xmax Skewness [D] . Stapleton, James 2015

机译：超高能宇宙射线：组成，早期空气淋浴间的相互作用和Xmax偏度
6. Filaments of galaxies as a clue to the origin of ultrahigh-energy cosmic rays [O] . Jihyun Kim, Dongsu Ryu, Hyesung Kang, 2019

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7. Comment on "The Lamb Shift and Ultra High Energy Cosmic Rays" and Comment on "Vacuum Polarization Energy Losses of High Energy Cosmic Rays" [O] . Deligny, Olivier 2002

机译：评“羊羔位移和超高能宇宙射线”和评“高能宇宙线的真空极化能量损失”

Composition of cosmic rays at ultra high energies

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