Correlation between ultra-high-energy cosmic rays and active galactic nuclei from the fermi large-area telescope

被引：0
|
作者：
Jihyun Kim
Hang Bae Kim
机构：
[1] Hanyang University,Department of Physics
来源：
Journal of the Korean Physical Society | 2012年 / 61卷
关键词：
Cosmic rays; Active galactic nuclei; Statistical tests;
D O I：
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学科分类号：
摘要：
We study the possibility that γ-ray loud active galactic nuclei (AGNs) are the sources of ultrahigh-energy cosmic rays (UHECRs) by using a correlation analysis of their locations and the arrival directions of UHECR. We use data for γ-ray loud AGN with d ≤ 100 Mpc from the second Fermi Large-area Telescope AGN catalog and UHECR data with E ≥ 55 EeV observed by the Pierre Auger Observatory. The distribution of arrival directions expected from theγ-ray loud AGN is compared with that of the observed UHECR by using the correlational angular distance distribution and the Kolmogorov-Smirnov test. We conclude that the hypothesis that the γ-ray loud AGN are the dominant sources of UHECR is disfavored unless there is a large smearing effect due to intergalactic magnetic fields.
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页码：1911 / 1917
页数：6
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