Analysis of anisotropy of cosmic rays with the energy of about 1017 eV by Yakutsk EAS array data

被引：16

作者：

Pravdin, MI ^{[1
]}

Ivanov, AA ^{[1
]}

Krasil'nikov, AD ^{[1
]}

Mikhailov, AA ^{[1
]}

Sleptsov, IE ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Cosmophys Res & Aeron, Siberian Div, Yakutsk 677891, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2001年 / 92卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Radiation; Spectroscopy; Anisotropy; Field Theory; Elementary Particle;

D O I：

10.1134/1.1378167

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A harmonic analysis of the directions of arrival of cosmic-ray particles with an energy of about 10(17) eV in the vicinity of the registration threshold of the Yakutsk extensive air showers (EAS) array is given. A method for determining the contribution of inhomogeneous observation conditions and seasonal variations of the frequency of extensive air showers to the observed anisotropy is suggested. Taking into account these factors results in a considerable decrease of the amplitude characterizing the degree of anisotropy of cosmic-ray primaries. The amplitude of the first harmonic with respect to the right ascension is (0.45 +/- 0.55)%, which shows that no probably significant anisotropy of the primary radiation is observed at 10(17) eV. (C) 2001 MAIK "Nauka/Interperiodica".

引用

页码：766 / 770

页数：5

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