Mass composition of cosmic rays above 0.1 EeV by the Yakutsk array data

被引：19

作者：

Knurenko, S. ^{[1
]}

Petrov, I. ^{[1
]}

机构：

[1] RAS, SB, Yu G Shafer Inst Cosmophys Res & Aeron, 31 Lenin Ave, Yakutsk 677980, Russia

来源：

ADVANCES IN SPACE RESEARCH | 2019年 / 64卷 / 12期

关键词：

Mass composition; Cosmic rays; Cherenkov light; Ultra-high energies; Yakutsk array; AIR-SHOWERS; CHERENKOV LIGHT; ENERGY; DISTRIBUTIONS; COMPONENT; SPECTRUM;

D O I：

10.1016/j.asr.2019.07.019

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The paper presents the results of the longitudinal development of extensive air showers (X-max) of ultra-high energies and mass composition of cosmic rays. The measurements of X-max are based on data from observations of the Cherenkov radiation at the Yakutsk array for the period 1974-2014. The cascade curves of individual showers and the depth of maximum X-max. were reconstructed over the energy range 10(16)-5.7.10(19) eV. It is shown that the displacement rate of the parameter dX(max)/dE in the atmosphere is nonlinear and depends on the energy. Such a feature indicates a change in mass composition, which is confirmed by fluctuations of X-max in this energy region. The composition of cosmic rays was determined by interpolation using the QGSJetII-04 model. (C) 2019 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：2570 / 2577

页数：8

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