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@ARTICLE{ALZetoun:631268,
      author       = {AL-Zetoun, Ala'a and van Vliet, Arjen and Taylor, Andrew
                      and Winter, Walter},
      title        = {{C}onstraining the {E}xtragalactic {M}agnetic {F}ield:
                      {A}uger {D}ata {M}eet {UHECR} {P}ropagation {M}odeling},
      journal      = {Monthly notices of the Royal Astronomical Society},
      volume       = {545},
      number       = {4},
      issn         = {0035-8711},
      address      = {Oxford},
      publisher    = {Oxford Univ. Press},
      reportid     = {PUBDB-2025-01940, 2506.16169},
      pages        = {staf2203},
      year         = {2026},
      abstract     = {Recent analyses from the Pierre Auger Collaboration suggest
                      correlations between the arrival directions of
                      Ultra-High-Energy Cosmic Rays (UHECRs) and catalogs of
                      starburst galaxies (SGBs) and jetted active galactic nuclei
                      (AGNs). We revisit these analyses using the same methodology
                      as $\auger$ , but explicitly incorporating UHECR deflections
                      in turbulent extragalactic magnetic fields (EGMFs). We
                      demonstrate that while for SBGs the same sources as for the
                      generic $\auger\$ analysis dominate the catalog
                      correlations, jetted AGNs are dominated by Centaurus~A when
                      accounting for source distances and deflections. Using our
                      framework, we derive $90\\%$ confidence level upper limits
                      on the local EGMF strength of 4.4~nG~Mpc$^{1/2}$ for SBGs
                      and 6.7~nG~Mpc$^{1/2}$ for jetted AGNs. Assuming instead
                      that the UHECR deflections predominantly arise from the
                      Galactic magnetic field (GMF), we obtain a GMF upper limit
                      of $1.4 \, μ$G~kpc$^{1/2}$ for a Galactic halo size of
                      30~kpc.},
      cin          = {$Z_THAT$},
      ddc          = {520},
      cid          = {$I:(DE-H253)Z_THAT-20210408$},
      pnm          = {613 - Matter and Radiation from the Universe (POF4-613)},
      pid          = {G:(DE-HGF)POF4-613},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2506.16169},
      howpublished = {arXiv:2506.16169},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2506.16169;\%\%$},
      doi          = {10.1093/mnras/staf2203},
      url          = {https://bib-pubdb1.desy.de/record/631268},
}