C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST12:15:33

2011A&A...535A..66D - Astronomy and Astrophysics, volume 535A, 66-66 (2011/11-1)

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


Abstract (from CDS):

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.

Abstract Copyright:

Journal keyword(s): nuclear reactions, nucleosynthesis, abundances - gamma rays: diffuse background - acceleration of particles - neutrinos - relativistic processes - astroparticle physics

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
1 QSO B0229+200 BLL 02 32 48.6154943841 +20 17 17.493345304   18.0 18.00     ~ 259 3
2 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 3999 3

    Equat.    Gal    SGal    Ecl

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