Cosmogenic photons strongly constrain UHECR source models

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

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.

Original languageBritish English
Title of host publication7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016
EditorsJorg R. Horandel, Robert Lahmann, Olaf Scholten, Sijbrand De Jong, Rolf Nahnhauer, Stijn Buitink
PublisherEDP Sciences
ISBN (Electronic)9782759890156
DOIs
StatePublished - 15 Mar 2017
Event7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016 - Groningen, Netherlands
Duration: 7 Jun 201610 Jun 2016

Publication series

NameEPJ Web of Conferences
Volume135
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016
Country/TerritoryNetherlands
CityGroningen
Period7/06/1610/06/16

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