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Naslov:Combined fit of spectrum and composition for FR0 radio-galaxy-emitted ultra–high energy cosmic rays with resulting secondary photons and neutrinos
Avtorji:ID Lundquist, Jon Paul (Avtor)
ID Vorobiov, Serguei (Avtor)
ID Merten, Lukas (Avtor)
ID Reimer, Anita (Avtor)
ID Boughelilba, Margot (Avtor)
ID Da Vela, Paolo (Avtor)
ID Tavecchio, Fabrizio (Avtor)
ID Bonnoli, Giacomo (Avtor)
ID Righi, Chiara (Avtor)
Datoteke:URL https://iopscience.iop.org/article/10.3847/1538-4357/ad8cd7
 
.pdf Lundquist_2025_ApJ_978_20.pdf (4,14 MB)
MD5: 37B3194231B632D263932F9F253950D4
 
URL https://iopscience.iop.org/article/10.3847/1538-4357/ad8cd7
 
To gradivo ima še več datotek. Celoten seznam je na voljo spodaj.
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:This study comprehensively investigates the gamma-ray dim population of Fanaroff–Riley Type 0 (FR0) radio galaxies as potentially significant sources of ultra–high energy cosmic rays (UHECRs, E > 10[sup]18 eV) detected on Earth. While individual FR0 luminosities are relatively low compared to the more powerful Fanaroff–Riley Type 1 and Type 2 galaxies, FR0s are substantially more prevalent in the local universe, outnumbering the more energetic galaxies by a factor of ∼5 within a redshift of z ≤ 0.05. Employing CRPropa3 simulations, we estimate the mass composition and energy spectra of UHECRs originating from FR0 galaxies for energies above 10[sup]18.6 eV. This estimation fits data from the Pierre Auger Observatory (Auger) using three extensive air shower models; both constant and energy-dependent observed elemental fractions are considered. The simulation integrates an approximately isotropic distribution of FR0 galaxies, extrapolated from observed characteristics, with UHECR propagation in the intergalactic medium, incorporating various plausible configurations of extragalactic magnetic fields, both random and structured. We then compare the resulting emission spectral indices, rigidity cutoffs, and elemental fractions with recent Auger results. In total, 25 combined energy-spectrum and mass-composition fits are considered. Beyond the cosmic-ray fluxes emitted by FR0 galaxies, this study predicts the secondary photon and neutrino fluxes from UHECR interactions with intergalactic cosmic photon backgrounds. The multimessenger approach, encompassing observational data and theoretical models, helps elucidate the contribution of low-luminosity FR0 radio galaxies to the total cosmic-ray energy density.
Ključne besede:ultra-high-energy cosmic rays, UHECRs, UHECR energy spectrum, Pierre Auger Observatory, UHECR mass composition, UHECR sources, extragalactic magnetic fields, UHECR propagation, CRPropa tool
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:20.12.2024
Leto izida:2025
Št. strani:str. 1-20
Številčenje:Vol. 978, no. 1, [article no.] 20
PID:20.500.12556/RUNG-9598 Novo okno
COBISS.SI-ID:221024771 Novo okno
UDK:52
ISSN pri članku:1538-4357
DOI:10.3847/1538-4357/ad8cd7 Novo okno
NUK URN:URN:SI:UNG:REP:EDUK0NDX
Datum objave v RUNG:06.01.2025
Število ogledov:656
Število prenosov:10
Metapodatki:XML DC-XML DC-RDF
:
LUNDQUIST, Jon Paul, VOROBIOV, Serguei, MERTEN, Lukas, REIMER, Anita, BOUGHELILBA, Margot, DA VELA, Paolo, TAVECCHIO, Fabrizio, BONNOLI, Giacomo in RIGHI, Chiara, 2025, Combined fit of spectrum and composition for FR0 radio-galaxy-emitted ultra–high energy cosmic rays with resulting secondary photons and neutrinos. The Astrophysical journal [na spletu]. 2025. Vol. 978, no. 1,  20, p. 1–20. [Dostopano 29 april 2025]. DOI 10.3847/1538-4357/ad8cd7. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=9598
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Gradivo je del revije

Naslov:The Astrophysical journal
Skrajšan naslov:Astrophys. j.
Založnik:University of Chicago Press for the American Astronomical Society
ISSN:1538-4357
COBISS.SI-ID:515079705 Novo okno

Gradivo je financirano iz projekta

Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:N1-0111
Naslov:Identifikacija izvorov kozmičnih žarkov med aktivnimi galaksijami s curki

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

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