Cosmogenic photons strongly constrain UHECR source models

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00551270" target="_blank" >RIV/68378271:_____/17:00551270 - isvavai.cz</a>
Result on the web
<a href="https://www.epj-conferences.org/articles/epjconf/pdf/2017/04/epjconf_arena2017_03001.pdf" target="_blank" >https://www.epj-conferences.org/articles/epjconf/pdf/2017/04/epjconf_arena2017_03001.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/201713503001" target="_blank" >10.1051/epjconf/201713503001</a>

Result language
angličtina
Original language name
Cosmogenic photons strongly constrain UHECR source models
Original language description
With the newest version of our Monte Carlo code for ultra-high-energy cosmic ray (UHECR) propagation, CRPropa 3, the flux of neutrinos and photons due to interactions of UHECRs with extragalactic background light can be predicted. Together with the recently updated data for the isotropic diffuse gamma-ray background (IGRB) by Fermi LAT, it is now possible to severely constrain UHECR source models. The evolution of the UHECR sources especially plays an important role in the determination of the expected secondary photon spectrum. Pure proton UHECR models are already strongly constrained, primarily by the highest energy bins of Fermi LAT's IGRB, as long as their number density is not strongly peaked at recent times.
Czech name
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Czech description
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Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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