Gravitational radiation from ultra high energy cosmic rays in models with large extra dimensions [PDF]
Astroparticle Physics, 2006 The effects of classical gravitational radiation in models with large extra dimensions are investigated for ultra high energy cosmic rays (CRs). The cross sections are implemented into a simulation package (SENECA) for high energy hadron induced CR air showers.
Marcus Bleicher
exaly +3 more sources
Analytic calculations of the spectra of ultra-high energy cosmic ray nuclei. I. The case of CMB radiation [PDF]
Astroparticle Physics, 2013 The paper is the first part of a two papers series, it is composed by 41 pages, 4 appendixes and 27 eps figures, version accepted for publication in Astroparticle ...
R Aloisio, V Berezinsky
exaly +3 more sources
Analytic calculations of the spectra of ultra high energy cosmic ray nuclei. II. The general case of background radiation [PDF]
Astroparticle Physics, 2013 We discuss the problem of ultra high energy nuclei propagation in extragalactic background radiations. The present paper is the continuation of the accompanying paper I where we have presented three new analytic methods to calculate the fluxes and spectra of ultra high energy cosmic ray nuclei, both primary and secondary, and secondary protons.
R Aloisio, V Berezinsky
exaly +3 more sources
Physical conditions in potential accelerators of ultra-high-energy cosmic rays: updated Hillas plot and radiation-loss constraints [PDF]
Physics-Uspekhi, 2010 We review basic constraints on the acceleration of ultra-high-energy (UHE) cosmic rays (CRs) in astrophysical sources, namely the geometrical (Hillas) criterion and restrictions from radiation losses in different acceleration regimes. Using the latest available astrophysical data, we redraw the Hillas plot and figure out potential UHECR accelerators ...
Ptitsyna, Ksenia, Troitsky, Sergey
exaly +3 more sources
First results from the microwave air yield beam experiment (MAYBE): Measurement of GHz radiation for ultra-high energy cosmic ray detection [PDF]
EPJ Web of Conferences, 2013 We present measurements of microwave emission from an electron-beam induced air plasma performed at the 3 MeV electron Van de Graaff facility of the Argonne National Laboratory. Results include the emission spectrum between 1 and 15 GHz, the polarization
Verzi V. +19 more
doaj +2 more sources
Treasure Maps for Detections of Extreme Energy Cosmic Rays
The Astrophysical Journal, 2023 The origin of ultra-high-energy cosmic rays is a 60 yr old mystery. We show that with more events at the highest energies (above 150 EeV) it may be possible to limit the character of the sources and learn about the intervening magnetic fields. Individual
Noémie Globus +2 more
doaj +1 more source
Radio detection in the multi-messenger context [PDF]
EPJ Web of Conferences, 2019 The present work discusses the development of the radio technique for detection of ultra-high energy air-showers induced by cosmic radiation, and the prospects of its application in the future multi-messenger activities, particularly for detection of ...
Kostunin D.
doaj +1 more source
Constraints on the Hosts of UHECR Accelerators
The Astrophysical Journal Letters, 2023 Interactions of ultra-high-energy cosmic rays (UHECRs) in the surroundings of their accelerators can naturally explain the observed spectrum and composition of UHECRs, including the abundance of protons below the ankle.
Marco Stein Muzio, Glennys R. Farrar
doaj +1 more source
Acceleration and Spectral Redistribution of Cosmic Rays in Radio-jet Shear Flows
The Astrophysical Journal, 2023 A steady-state, semi-analytical model of energetic particle acceleration in radio-jet shear flows due to cosmic-ray viscosity obtained by Webb et al. is generalized to take into account more general cosmic-ray boundary spectra.
G. M. Webb +7 more
doaj +1 more source
Near-field effects of Cherenkov radiation induced by ultra high energy cosmic neutrinos [PDF]
Astroparticle Physics, 2012 The radio approach for detecting the ultra-high energy cosmic neutrinos has become a mature field. The Cherenkov pulse in radio detection originates from the charge excess of particle showers due to Askaryan effect. The conventional way of calculating the Cherenkov pulse by making far- field approximation fails when the size of elongated showers become
Hu, Chia-Yu +2 more
openaire +3 more sources