20.500.12556/RUNG-6672
Extrapolating FR-0 radio galaxy source properties from propagation of multi-messenger ultra-high energy cosmic rays
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.
jetted active galaxies
FR-0 radiogalaxies
ultra-high energy cosmic rays
extragalactic magnetic fields
UHECR propagation
UHECR interactions
cosmogenic photons
cosmogenic neutrinos
true
true
false
Angleški jezik
Ni določen
Neznano
2021-08-15 21:05:07
2021-08-16 09:16:43
2023-09-27 03:07:25
0000-00-00 00:00:00
2021
0
0
str. 1-8
2021
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
73060355
539.1
1824-8039
69435907
URN:SI:UNG:REP:5OLROXRX
ICRC2021_989.pdf
ICRC2021_989.pdf
1
B981AFBFC9C7C46123D106549CA13A70
a74cdcd297e90f7a60cc89063c9802deb27552c90b629beba7141e11df6f47cf
c13932f2-05cf-11ee-9c48-5ef991fed68f
https://repozitorij.ung.si/Dokument.php?lang=slv&id=22543
Univerza v Novi Gorici
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