Correlation function of ultrahigh-energy cosmic rays favors point sources

被引：86

作者：

Tinyakov, PG ^{[1
]}

Tkachev, II

机构：

[1] Univ Lausanne, Inst Theoret Phys, CH-1015 Lausanne, Switzerland

[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[3] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

来源：

JETP LETTERS | 2001年 / 74卷 / 01期

关键词：

D O I：

10.1134/1.1402195

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We calculate the angular two-point correlation function of ultrahigh-energy cosmic rays (UHECR) observed in the AGASA and Yakutsk experiments. In both data sets, there is a strong signal at the highest energies, which is concentrated in the first bin of size equal to the angular resolution of the experiment. For the uniform distribution of sources, the probability of chance clustering is 4 x 10(-6). Correlations are absent or insignificant at larger angles. This favors the models with compact sources of UHECR. (C) 2001 MAIK "Nauka/Interperiodica".

引用

页码：1 / 5

页数：5

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