| Title: | Extrapolating FR-0 radio galaxy source properties from propagation of multi-messenger ultra-high energy cosmic rays |
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| Authors: | ID Lundquist, Jon Paul (Author)
ID Merten, Lukas (Author)
ID Vorobiov, Serguei (Author)
ID Boughelilba, Margot (Author)
ID Reimer, Anita (Author)
ID Da Vela, Paolo (Author)
ID Tavecchio, Fabrizio (Author)
ID Bonnoli, Giacomo (Author)
ID Righi, Chiara (Author) |
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| Files: |  ICRC2021_989.pdf (2,04 MB)
MD5: B981AFBFC9C7C46123D106549CA13A70
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | Recently, it has been shown that relatively low luminosity Fanaroff-Riley type 0 (FR-0) radio galaxies are a good candidate source class for a predominant fraction of cosmic rays (CR) accelerated to ultra-high energies (UHE, E>10[sup]18 eV). FR-0s can potentially provide a significant fraction
of the UHECR energy density as they are much more numerous in the local universe than more energetic radio galaxies such as FR-1s or FR-2s (up to a factor of ∼5 with z≤0.05 compared to
FR-1s).
In the present work, UHECR mass composition and energy spectra at the FR-0 sources are estimated by fitting simulation results to the published Pierre Auger Observatory data. This fitting is done using a simulated isotropic sky distribution extrapolated from the measured FR-0 galaxy properties and propagating CRs in plausible extragalactic magnetic field configurations using the CRPropa3 framework. In addition, we present estimates of the fluxes of secondary photons and neutrinos created in UHECR interactions with cosmic photon backgrounds during
CR propagation. With this approach, we aim to investigate the properties of the sources with the help of observational multi-messenger data. |
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| Keywords: | jetted active galaxies, FR-0 radiogalaxies, ultra-high energy cosmic rays, extragalactic magnetic fields, UHECR propagation, UHECR interactions, cosmogenic photons, cosmogenic neutrinos |
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| Year of publishing: | 2021 |
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| Number of pages: | str. 1-8 |
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| PID: | 20.500.12556/RUNG-6672  |
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| COBISS.SI-ID: | 73060355 |
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| UDC: | 539.1 |
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| ISSN on article: | 1824-8039 |
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| NUK URN: | URN:SI:UNG:REP:5OLROXRX |
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| Publication date in RUNG: | 16.08.2021 |
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| Views: | 1906 |
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| Downloads: | 3 |
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