Correlation between ultra-high-energy cosmic rays and active galactic nuclei from the fermi large-area telescope
- Authors
- Kim, Jihyun; Kim, Hang Bae
- Issue Date
- Dec-2012
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Cosmic rays; Active galactic nuclei; Statistical tests
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.61, no.11, pp.1911 - 1917
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 61
- Number
- 11
- Start Page
- 1911
- End Page
- 1917
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/144687
- DOI
- 10.3938/jkps.61.1911
- ISSN
- 0374-4884
- Abstract
- We study the possibility that gamma-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 gamma-ray loud AGN with d a parts per thousand currency sign 100 Mpc from the second Fermi Large-area Telescope AGN catalog and UHECR data with E a parts per thousand yen 55 EeV observed by the Pierre Auger Observatory. The distribution of arrival directions expected from the gamma-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 gamma-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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