We compare the expected contribution of FR-II hot spots to the ultra-high energy cosmic ray spectrum (Rachen & Biermann 1993, A&A in press, BB paper astro-ph/9301010) to improved experimental results. We introduce a "world data set" of UHE cosmic rays by comparing the data of various experiments, extracting relative systematic errors in the energy derivation and averaging over energy bins. Since the contribution of FR-II hot spots is expected to be dominated by protons, we can also compare it to the recent experimental results for the proton component of cosmic rays between 0.1 and 1 EeV from both the Fly's Eye and the Akeno airshower detector (Gaisser et al. 1993, Phys Rev D in press, and Stanev et al. 1992, A&A submitted). The result is s...
While several arguments can be proposed against the existence of particles with energy in excess of ...
These lectures discuss the mysteries involving the production and extragalactic propagation of ultra...
In this chapter I give an overview of shock acceleration, including a discussion of the maximum ener...
A re-examination of the energy cosmic ray spectrum above 1020 eV is presented. The overall data-base...
Cosmic ray (CR) particles arrive at the top of the Earth's atmosphere at a rate of around 1000 per s...
The energy spectrum, composition and arrival directions of ultrahigh energy cosmic rays (UHECRs) wit...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A=1-56) from cosmologically d...
The physics of Ultra High Energy Cosmic Rays will be reviewed, discussing the latest experimental re...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A = 1-56) from cosmologically...
Using the concept developed in earlier papers, that the cosmic rays originate in three different mai...
We present a brief introduction to the physics of Ultra High Energy Cosmic Rays (UHECRs), concentrat...
We give a brief overview of the current experimental and theoretical status of cosmic rays above ~10...
The most energetic particles ever detected exceed $10^{20}$ eV in energy. Their existence represents...
Ultra-high energy cosmic rays (UHECRs) are cosmic rays with energy exceeding 10¹⁸ electronvolts. The...
This project investigates the propagation of ultra-high energy cosmic raynuclei and protons. A simul...
While several arguments can be proposed against the existence of particles with energy in excess of ...
These lectures discuss the mysteries involving the production and extragalactic propagation of ultra...
In this chapter I give an overview of shock acceleration, including a discussion of the maximum ener...
A re-examination of the energy cosmic ray spectrum above 1020 eV is presented. The overall data-base...
Cosmic ray (CR) particles arrive at the top of the Earth's atmosphere at a rate of around 1000 per s...
The energy spectrum, composition and arrival directions of ultrahigh energy cosmic rays (UHECRs) wit...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A=1-56) from cosmologically d...
The physics of Ultra High Energy Cosmic Rays will be reviewed, discussing the latest experimental re...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A = 1-56) from cosmologically...
Using the concept developed in earlier papers, that the cosmic rays originate in three different mai...
We present a brief introduction to the physics of Ultra High Energy Cosmic Rays (UHECRs), concentrat...
We give a brief overview of the current experimental and theoretical status of cosmic rays above ~10...
The most energetic particles ever detected exceed $10^{20}$ eV in energy. Their existence represents...
Ultra-high energy cosmic rays (UHECRs) are cosmic rays with energy exceeding 10¹⁸ electronvolts. The...
This project investigates the propagation of ultra-high energy cosmic raynuclei and protons. A simul...
While several arguments can be proposed against the existence of particles with energy in excess of ...
These lectures discuss the mysteries involving the production and extragalactic propagation of ultra...
In this chapter I give an overview of shock acceleration, including a discussion of the maximum ener...