منابع مشابه
30TH INTERNATIONAL COSMIC RAY CONFERENCE The Highest Energy Neutrinos
Measurements of the arrival directions of cosmic rays have not revealed their sources. High energy neutrino telescopes attempt to resolve the problem by detecting neutrinos whose directions are not scrambled by magnetic fields. The key issue is whether the neutrino flux produced in cosmic ray accelerators is detectable. It is believed that the answer is affirmative, both for the galactic and ex...
متن کاملNon-extensivity Effects and the Highest Energy Cosmic Ray Affair
Recent measurements of the cosmic microwave background confirm that it is described by a Planckian distribution with high precision. It is non-extensivity bounded to be less than some parts in 10, or to some parts in 10 at most. This deviation may appear minuscule, but may have a non-negligible effect on a particle propagating through this background over the course of millions of years. In thi...
متن کاملCosmological gamma-ray bursts and the highest energy cosmic rays.
We discuss a scenario in which the highest energy cosmic rays (CR's) and cosmological-ray bursts (GRB's) have a common origin. This scenario is consistent with the observed CR ux above 10 20 eV, provided that each burst produces similar energies in-rays and in CR's above 10 20 eV. Protons may be accelerated by Fermi's mechanism to energies 10 20 eV in a dissipative, ultra-relativistic wind, wit...
متن کاملMagnetic Monopoles as the Highest Energy Cosmic Ray Primaries
We suggest that the highest energy > ∼ 10eV cosmic ray primaries may be relativistic magnetic monopoles. Motivations for this hypothesis are that conventional primaries are problematic, while monopoles are naturally accelerated to E ∼ 10eV by galactic magnetic fields. By matching the cosmic monopole production mechanism to the observed highest energy cosmic ray flux we estimate the monopole mas...
متن کاملWas the Highest Energy Cosmic Ray a Photon? *
The hypothetical photonic origin of the most energetic air shower detected by the Fly's Eye experiment is discussed. The method used for the analysis is based on Monte Carlo simulations including the effect of precas-cading of ultra-high energy (UHE) photons in the geomagnetic field. The application of this method to data expected from the Pierre Auger Observatory is discussed. The importance o...
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ژورنال
عنوان ژورنال: Astroparticle Physics
سال: 1995
ISSN: 0927-6505
DOI: 10.1016/0927-6505(94)00038-5