We critically review the common belief that ultrahigh energy cosmic rays are protons or atomic nuclei with masses not exceeding that of iron. We find that heavier nuclei are indeed possible, and discuss possible sources and acceleration mechanisms for such primaries. We also show detailed simulations of extensive air showers produced by “superheavy” nuclei, and discuss prospects for their detection in future experiments.Facultad de Ciencias Exacta
Ultrahigh energy cosmic rays present a major unsolved puzzle. Not only do we not know their origin, ...
In this chapter I give an overview of shock acceleration, including a discussion of the maximum ener...
These lectures discuss the mysteries involving the production and extragalactic propagation of ultra...
We critically review the common belief that ultrahigh energy cosmic rays are protons or atomic nucle...
We critically review the common belief that ultrahigh energy cosmic rays are protons or atomic nucle...
The Earth is exposed to a permanent rain of cosmic particles from outer space. Most of the particles...
A brief review of the energy spectrum of primary cosmic rays above $10^{10}$ eV and the measurement ...
Large-scale accretion shocks around massive clusters of galaxies, generically expected in the cold d...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A=1-56) from cosmologically d...
Theoretical aspects of potential astrophysical sources of the highest energy cosmic rays are discuss...
We provide an account of the possible acceleration of iron nuclei up to energies 300 EeV in the near...
A re-examination of the energy cosmic ray spectrum above 1020 eV is presented. The overall data-base...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A = 1-56) from cosmologically...
We study the propagation of ultra-high energy cosmic ray nuclei through the background of cosmic mic...
A re-examination of the energy cosmic ray spectrum above 1020 eV is presented. The overall data-base...
Ultrahigh energy cosmic rays present a major unsolved puzzle. Not only do we not know their origin, ...
In this chapter I give an overview of shock acceleration, including a discussion of the maximum ener...
These lectures discuss the mysteries involving the production and extragalactic propagation of ultra...
We critically review the common belief that ultrahigh energy cosmic rays are protons or atomic nucle...
We critically review the common belief that ultrahigh energy cosmic rays are protons or atomic nucle...
The Earth is exposed to a permanent rain of cosmic particles from outer space. Most of the particles...
A brief review of the energy spectrum of primary cosmic rays above $10^{10}$ eV and the measurement ...
Large-scale accretion shocks around massive clusters of galaxies, generically expected in the cold d...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A=1-56) from cosmologically d...
Theoretical aspects of potential astrophysical sources of the highest energy cosmic rays are discuss...
We provide an account of the possible acceleration of iron nuclei up to energies 300 EeV in the near...
A re-examination of the energy cosmic ray spectrum above 1020 eV is presented. The overall data-base...
We investigate the propagation of ultra-high energy cosmic ray nuclei (A = 1-56) from cosmologically...
We study the propagation of ultra-high energy cosmic ray nuclei through the background of cosmic mic...
A re-examination of the energy cosmic ray spectrum above 1020 eV is presented. The overall data-base...
Ultrahigh energy cosmic rays present a major unsolved puzzle. Not only do we not know their origin, ...
In this chapter I give an overview of shock acceleration, including a discussion of the maximum ener...
These lectures discuss the mysteries involving the production and extragalactic propagation of ultra...