J. P. Lundquist (Avtor), Lukas Merten (Avtor), Serguei Vorobiov (Avtor), Margot Boughelilba (Avtor), Anita Reimer (Avtor), Paolo Da Vela (Avtor), Fabrizio Tavecchio (Avtor), Giacomo Bonnoli (Avtor), Chiara Righi (Avtor)

Povzetek

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.

Ključne besede

jetted active galaxies;FR-0 radiogalaxies;ultra-high energy cosmic rays;extragalactic magnetic fields;UHECR propagation;UHECR interactions;cosmogenic photons;cosmogenic neutrinos;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija: UNG - Univerza v Novi Gorici
UDK: 539.1
COBISS: 73060355 Povezava se bo odprla v novem oknu
ISSN: 1824-8039
Št. ogledov: 1421
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

URN: URN:SI:UNG
Strani: str. 1-8
Čas izdaje: 2022
ID: 13283801
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