Skip to Main content Skip to Navigation
Journal articles

Constraints on the origin of ultra-high-energy cosmic rays from cosmogenic neutrinos and photons

G. Decerprit 1 D. Allard 2, *
* Corresponding author
2 APC - AHE - APC - Astrophysique des Hautes Energies
APC (UMR_7164) - AstroParticule et Cosmologie, Dipartimento di Astronomia, Universita degli Studi di Bologna
Abstract : We study the production of cosmogenic neutrinos and photons during the extragalactic propagation of ultra-high-energy cosmic rays (UHECRs). For a wide range of models in cosmological evolution of source luminosity, composition and maximum energy we calculate the expected flux of cosmogenic secondaries by normalizing our cosmic ray output to experimental spectra and comparing the diffuse flux of GeV - TeV gamma-rays to the experimental one measured by the Fermi satellite. Most of these models yield significant neutrino fluxes for current experiments like IceCube or Pierre Auger. Furthermore, we discuss the possibilities of signing the presence of UHE proton sources either within or outside the cosmic ray horizon using neutrinos or photons observations even if the cosmic ray composition becomes heavier at the highest energies. We discuss the possible constraints that could be brought on the UHECR origin from the different messengers and energy ranges.
Complete list of metadata
Contributor : Etienne Parizot Connect in order to contact the contributor
Submitted on : Tuesday, September 11, 2012 - 12:28:37 AM
Last modification on : Thursday, November 18, 2021 - 3:57:13 AM

Links full text



G. Decerprit, D. Allard. Constraints on the origin of ultra-high-energy cosmic rays from cosmogenic neutrinos and photons. Astronomy and Astrophysics - A&A, EDP Sciences, 2011, 535, pp.A66. ⟨10.1051/0004-6361/201117673⟩. ⟨in2p3-00730711⟩



Les métriques sont temporairement indisponibles