Correlation between ultra-high-energy cosmic rays and active galactic nuclei from the fermi large-area telescope
- Title
- Correlation between ultra-high-energy cosmic rays and active galactic nuclei from the fermi large-area telescope
- Author
- 김항배
- Keywords
- Cosmic rays; Active galactic nuclei; Statistical tests
- Issue Date
- 2012-12
- Publisher
- KOREAN PHYSICAL SOC
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, Dec 2012, 61(11), P.1911-1917, 7P.
- 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.
- URI
- https://link.springer.com/article/10.3938%2Fjkps.61.1911http://hdl.handle.net/20.500.11754/47699
- ISSN
- 0374-4884
- DOI
- 10.3938/jkps.61.1911
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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