scholarly journals trans-GZK Cosmic Rays: Strings, Black Holes, Neutrinos, or all Three?

2004 ◽  
Vol 136 ◽  
pp. 327-332 ◽  
Author(s):  
William S. Burgett ◽  
Gabor Domokos ◽  
Susan Kovesi-Domokos
Keyword(s):  
Black Holes ◽  
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 Dark Experiments: From Black Holes to Cosmic Rays

2012 ◽  
Vol 03 (09) ◽  
pp. 955-956
Author(s):  
Allen D. Allen
Keyword(s):  
Black Holes ◽  
Cosmic Rays

THE EMISSION OF ULTRA-HIGH ENERGY COSMIC RAYS FROM ELECTROMAGNETIC BLACK HOLES

2006 ◽  
Author(s):  
P. CHARDONNET ◽  
A. MATTEI ◽  
R. RUFFINI ◽  
C. L. BIANCO ◽  
F. FRASCHETTI ◽  
...  
Keyword(s):  
Black Holes ◽  
Cosmic Rays ◽  
High Energy ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays

A SHORT, CRITICAL REVIEW ON GAMMA-RAY EMISSION FROM GALAXY CLUSTERS

2009 ◽  
Vol 18 (10) ◽  
pp. 1541-1544
Author(s):  
SERGIO COLAFRANCESCO
Keyword(s):  
Black Holes ◽  
Dark Matter ◽  
Cosmic Rays ◽  
Galaxy Clusters ◽  
Critical Review ◽  
Particle Physics ◽  
Gamma Ray ◽  
Gamma Ray Emission ◽  
The Impact

We discuss the relevance of gamma-ray observations of galaxy clusters, to unveil several issues that are relevant for Cosmology and Astro-Particle Physics of cosmic structures: the nature of Dark Matter, the origin of cosmic rays and the impact of black holes.

The possible existence of black holes in cosmic rays

1976 ◽  
Vol 19 (12) ◽  
pp. 1644-1646
Author(s):  
V. P. Semenov
Keyword(s):  
Black Holes ◽  
Cosmic Rays

scholarly journals Symmetry Breaking and Invariant Mass Approach to the Spiral Structure of Galaxies

1981 ◽  
Vol 94 ◽  
pp. 171-172
Author(s):  
K. O. Thielheim
Keyword(s):  
Black Holes ◽  
Cosmic Rays ◽  
Central Region ◽  
Recent Progress ◽  
Spiral Galaxies ◽  
Spiral Structure ◽  
High Energy ◽  
High Energy Cosmic Rays ◽  
Physical Conditions ◽  
The Galaxy

The physical conditions in the centre of spiral galaxies as our own galaxy still are not very well known. They offer themselves to more or less exotic speculations, some of which involve the possible existence of black holes and mechanisms for the production of high energy cosmic rays. In view of such argumentations I feel it worthwhile to look in more detail into recent progress obtained in the understanding of the dynamics of the central region of spiral galaxies which turns out to be intimately related to the galaxy as a whole, especially its spiral structure.

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