Secondary gamma rays from ultrahigh energy cosmic rays produced in magnetized environments - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review D Year : 2006

Secondary gamma rays from ultrahigh energy cosmic rays produced in magnetized environments

Abstract

Nearby sources of cosmic rays up to a ZeV(=$10^21 eV) could be observed with a multimessenger approach including secondary gamma-rays and neutrinos. If cosmic rays above ~$10^18$ eV are produced in magnetized environments such as galaxy clusters, the flux of secondary gamma-rays can be enhanced by a factor ~10 at Gev energies and by a factor of a few at TeV energies, compared to unmagnetized sources. Particularly enhanced are synchrotron and cascade photons from $e^+e^-$ pairs produced by protons from sources with relatively steep injection spectra [proportional]$E^-2.6.$ Such sources should be visible at the same time in ultrahigh energy cosmic ray experiments and gamma-ray telescopes.
No file

Dates and versions

in2p3-00086232 , version 1 (18-07-2006)

Identifiers

Cite

E. Armengaud, G. Sigl, F. Miniati. Secondary gamma rays from ultrahigh energy cosmic rays produced in magnetized environments. Physical Review D, 2006, 73, pp.083008. ⟨10.1103/PhysRevD.73.083008⟩. ⟨in2p3-00086232⟩
26 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More