Energy spectrum and anisotropy of cosmic rays with E0 ≥ 1017 eV from Yakutsk EAS array data

被引:14
|
作者
Glushkov, AV [1 ]
Pravdin, MI [1 ]
机构
[1] Russian Acad Sci, Shafer Inst Space Phys & Aeron, Yakutsk 677891, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/1.2010665
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Data from the Yakutsk extensive air shower array for the period 1974-2004 are used to analyze the energy spectrum and anisotropy of primary cosmic rays (PCRs) with energy E-0 >= 10(17) eV. The spectra from different regions of the sky are shown to differ in shape. Enhanced and reduced particle fluxes come from the disks of the Galaxy and the Supergalaxy (the Local Supercluster of galaxies) at E-0 >= 5 x 10(18) eV and E-0 <= (2-3) x 10(18) eV, respectively. This is interpreted as a manifestation of the possible interaction between extragalactic PCRs and the matter of these spatial structures. (c) 2005 Pleiades Publishing, Inc.
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页码:88 / 97
页数:10
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