Irregularity in the Primary Cosmic Rays Mass Composition at an Energy of ∼10 PeV

被引：0
作者：
Pyatovsky, S. E. [1 ,2 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
[2] Natl Res Univ, Moscow Aviat Inst, Moscow 125993, Russia
来源：
BULLETIN OF THE LEBEDEV PHYSICS INSTITUTE | 2024年 / 51卷 / 09期
关键词：
primary cosmic rays; mass composition; variable stars; FAMILIES; HALOS;
D O I：
10.3103/S1068335624600943
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Irregularity in the mass composition of primary cosmic rays (PCR) at an energy of similar to 10 PeV is reviewed. To assess changes of the PCR mass composition, the X-ray emulsion chamber (XREC) method and the halo-method based on XREC were used. The study of changes in the PCR mass composition was carried out based on experimentally obtained characteristics of the extensive air shower (EAS) trunks, where fluctuations of these characteristics are minimal and information about the primary interaction of PCR nuclei with atmospheric atoms is maximally preserved. It is shown that at an E-0 = 10 PeV there is a local maximum of the heavy nuclei fraction. This maximum is correlated with the PCR sources including stars of variable SR (red giants and super-giants) and WR (Wolf-Rayet) types.
引用
收藏
页码：371 / 378
页数：8
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