Cosmogenic photon and neutrino fluxes in the Auger era
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00538518" target="_blank" >RIV/68378271:_____/19:00538518 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1475-7516/2019/01/002" target="_blank" >https://doi.org/10.1088/1475-7516/2019/01/002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2019/01/002" target="_blank" >10.1088/1475-7516/2019/01/002</a>
Alternative languages
Result language
angličtina
Original language name
Cosmogenic photon and neutrino fluxes in the Auger era
Original language description
The interaction of ultra-high-energy cosmic rays (UHECRs) with pervasive photon fields generates associated cosmogenic fluxes of neutrinos and photons due to photohadronic and photonuclear processes taking place in the intergalactic medium. We perform a fit of the UHECR spectrum and composition measured by the Pierre Auger Observatory for four source emissivity scenarios: power-law redshift dependence with one free parameter, active galactic nuclei, gamma-ray bursts, and star formation history. We show that negative source emissivity evolution is favoured if we treat the source evolution as a free parameter. In all cases, the best fit is obtained for relatively hard spectral indices and low maximal rigidities, for compositions at injection dominated by intermediate nuclei (nitrogen and silicon groups). In light of these results, we calculate the associated fluxes of neutrinos and photons. Finally, we discuss the prospects for the future generation of high-energy neutrino and gamma-ray observatories to constrain the sources of UHECRs.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
—
Continuities
—
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Cosmology and Astroparticle Physics
ISSN
1475-7516
e-ISSN
—
Volume of the periodical
2019
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
30
Pages from-to
1-30
UT code for WoS article
000455050400002
EID of the result in the Scopus database
2-s2.0-85062015051