Measuring extensive air showers with Cherenkov light detectors of the Yakutsk array: the energy spectrum of cosmic rays

被引：48
|
作者：
Ivanov, A. A. [1 ]
Knurenko, S. P. [1 ]
Sleptsov, I. Ye [1 ]
机构：
[1] Shafer Inst Cosmophys Res & Aeron, Yakutsk 677980, Russia
来源：
NEW JOURNAL OF PHYSICS | 2009年 / 11卷
关键词：
D O I：
10.1088/1367-2630/11/6/065008
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The energy spectrum of cosmic rays in the range E similar to 10(15) eV to 6 x 1019 eV is studied in this paper using air Cherenkov light detectors of the Yakutsk array. The total flux of photons produced by the relativistic electrons (including positrons as well, hereafter) of extensive air showers in the atmosphere is used as an energy estimator of the primary particle initiating a shower. The resultant differential flux of cosmic rays exhibits, in agreement with previous measurements, a knee and ankle feature at energies of 3 x 1015 and similar to 10(19) eV, respectively. A comparison of observational data with simulations is made in the knee and ankle regions in order to choose the models of galactic and extragalactic components of cosmic rays that describe well the energy spectrum measured.
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页数：30
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