Repository of University of Nova Gorica

Show document
A+ | A- | Help | SLO | ENG

Title:Multi-messenger insights into ultra-high-energy cosmic rays from FR0 radio galaxies : emission spectrum, composition, and secondary photons and neutrinos
Authors:ID Lundquist, Jon Paul (Author)
ID Vorobiov, Serguei (Author)
ID Merten, Lukas (Author)
ID Reimer, Anita (Author)
ID Boughelilba, Margot (Author)
ID Da Vela, Paolo (Author)
ID Tavecchio, Fabrizio (Author)
ID Bonnoli, Giacomo (Author)
ID Righi, Chiara (Author)
Files:URL https://pos.sissa.it/484/029
 
.pdf UHECR2024_029.pdf (5,94 MB)
MD5: 9181D8C063496F40704A63F4878E3A00
 
URL https://pos.sissa.it/484/
 
This document has even more files. Complete list of files is available below.
Language:English
Work type:Unknown
Typology:1.08 - Published Scientific Conference Contribution
Organization:UNG - University of Nova Gorica
Abstract:Despite their low individual luminosity, Fanaroff-Riley Type 0 (FR0) radio galaxies have emerged as potentially significant contributors to the observed flux of ultra-high-energy cosmic rays (UHECRs, E≥10 EeV) due to their substantial prevalence in the local universe. Outnumbering more powerful FR radio galaxies by approximately fivefold within redshifts of z≤0.05, FR0s may contribute a considerable fraction of the total UHECR energy density. The presented comprehensive study employs CRPropa3 simulations to estimate the mass composition and energy spectra of UHECRs emitted by FR0 galaxies. These simulations, which integrate extrapolated FR0 properties and various configurations of intergalactic magnetic fields (both random and structured), are compared to recent data from the Pierre Auger Observatory using three extensive air-shower models. By fitting the simulated spectral indices, rigidity cutoffs, and elemental fractions to Auger’s observed energy spectrum and ⟨lnA⟩ composition, we probe the contribution of FR0 sources to the UHECR flux. Furthermore, we predict the secondary photon and neutrino fluxes resulting from UHECR interactions with cosmic photon backgrounds and compare these results with current upper limits and theoretical models. This multi-messenger approach provides valuable insights into the role of low-luminosity FR0 radio galaxies within the UHECR landscape.
Keywords:ultra-high-energy cosmic rays, energy spectrum, mass composition, Fanaroff-Riley type 0
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2025
Year of publishing:2025
Number of pages:8 str.
PID:20.500.12556/RUNG-9924 New window
COBISS.SI-ID:229937411 New window
UDC:539.1
ISSN on article:1824-8039
DOI:10.22323/1.484.0029 New window
NUK URN:URN:SI:UNG:REP:CE9ZOAIH
Publication date in RUNG:24.03.2025
Views:337
Downloads:8
Metadata:XML DC-XML DC-RDF
:
Copy citation
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share


Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a proceedings

Title:UHECR 2024, The 7th International Symposium on Ultra-High-Energy Cosmic Rays
COBISS.SI-ID:229932291 New window

Record is a part of a journal

Title:Proceedings of science
Shortened title:Pos proc. sci.
Publisher:Sissa
ISSN:1824-8039
COBISS.SI-ID:20239655 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:N1-0111
Name:Identifikacija izvorov kozmičnih žarkov med aktivnimi galaksijami s curki
Funder:FWF - Austrian Science Fund
Funding programme:Internationale Projekte
Project number:I 4144
Name:Identification of cosmic ray sources amongst jetted galaxies

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Files

Loading...

Back