scholarly journals Radio-quiet active galactic nuclei as possible sources of ultrahigh-energy cosmic rays

2009 ◽  
Vol 80 (12) ◽  
Author(s):  
Asaf Pe’er ◽  
Kohta Murase ◽  
Peter Mészáros
Keyword(s):  
Cosmic Rays ◽  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays

scholarly journals DO ULTRAHIGH ENERGY COSMIC RAYS COME FROM ACTIVE GALACTIC NUCLEI ANDFERMIγ-RAY SOURCES?

2010 ◽  
Vol 719 (1) ◽  
pp. 459-468 ◽  
Author(s):  
Yun-Ying Jiang ◽  
L. G. Hou ◽  
J. L. Han ◽  
X. H. Sun ◽  
Wei Wang
Keyword(s):  
Cosmic Rays ◽  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays

scholarly journals Planck Neutrinos as Ultra High Energy Cosmic Rays

2020 ◽  
Vol 29 (1) ◽  
pp. 40-46
Author(s):  
Dmitri L. Khokhlov
Keyword(s):  
Black Holes ◽  
Cosmic Rays ◽  
Standard Model ◽  
Active Galactic Nuclei ◽  
Planck Scale ◽  
Galactic Nuclei ◽  
High Energy ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays ◽  
The Standard Model

AbstractThe studied conjecture is that ultra high energy cosmic rays (UHECRs) are hypothetical Planck neutrinos arising in the decay of the protons falling onto the gravastar. The proton is assumed to decay at the Planck scale into positron and four Planck neutrinos. The supermassive black holes inside active galactic nuclei, while interpreted as gravastars, are considered as UHECR sources. The scattering of the Planck neutrinos by the proton at the Planck scale is considered. The Planck neutrinos contribution to the CR events may explain the CR spectrum from 5 × 1018 eV to 1020 eV. The muon number in the Planck neutrinos-initiated shower is estimated to be larger by a factor of 3/2 in comparison with the standard model that is consistent with the observational data.

scholarly journals Are ultrahigh energy cosmic rays a signal for supersymmetry?

1998 ◽  
Vol 57 (8) ◽  
pp. 4606-4613 ◽  
Author(s):  
Daniel J. H. Chung ◽  
Glennys R. Farrar ◽  
Edward W. Kolb
Keyword(s):  
Cosmic Rays ◽  
Ultrahigh Energy ◽  
Ultrahigh Energy Cosmic Rays

scholarly journals A CORRELATION BETWEEN THE HIGHEST ENERGY COSMIC RAYS AND NEARBY ACTIVE GALACTIC NUCLEI DETECTED BYFERMI

2010 ◽  
Vol 722 (1) ◽  
pp. 281-288 ◽  
Author(s):  
Rodrigo S. Nemmen ◽  
Charles Bonatto ◽  
Thaisa Storchi-Bergmann
Keyword(s):  
Cosmic Rays ◽  
Active Galactic Nuclei ◽  
Galactic Nuclei
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