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arXiv 0812.2763astro-ph
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膝盖以上的宇宙射线

Cosmic Rays above the Knee

Michael Unger

摘要:

综述了10 ^16 eV以上宇宙射线的观测现状和唯象认识。在这些能量之上,宇宙射线通量预计将逐渐由河外成分主导。为了研究这种转变的性质,目前的实验活动集中在测量的宇宙线通量和组成的“脚踝”或“浸”功能在几个EeV。在光谱的超高能端,HiRes和Pierre Auger天文台的测量已经很好地建立了50 EeV以上的通量抑制,我们可能进入带电粒子天文学时代。

英文摘要:

An overview on the present observational status and phenomenological understanding of cosmic rays above 10^16 eV is given. Above these energies the cosmic ray flux is expected to be gradually dominated by an extra-galactic component. In order to investigate the nature of this transition, current experimental activities focus on the measurement of the cosmic ray flux and composition at the 'ankle' or 'dip' feature at several EeV. At the ultra high energy end of the spectrum, the flux suppression above 50 EeV is now well established by the measurements of HiRes and the Pierre Auger Observatory and we may enter the era of charged particle astronomy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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