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@INPROCEEDINGS{Roncadelli:297017,
      author       = {Roncadelli, Marco and De Angelis, Alessandro and Mansutti,
                      Oriana},
      title        = {{D}etection of distant {AGN} by {MAGIC}: the transparency
                      of the {U}niverse to high-energy photons},
      address      = {Hamburg},
      publisher    = {Deutsches Elektronen-Synchrotron, DESY},
      reportid     = {PUBDB-2016-01770, arXiv:0911.1056},
      pages        = {53-56},
      year         = {2009},
      abstract     = {The recent detection of blazar 3C279 by MAGIC has confirmed
                      previous indications by H.E.S.S. that the Universe is more
                      transparent to very-high-energy gamma rays than previously
                      thought. We show that this fact can be reconciled with
                      standard blazar emission models provided photon oscillations
                      into a veri light Axion-Like Particle occur in extragalactic
                      magnetic fields. A quantitative estimate of this effect
                      explains the observed spectrum of 3C279. Our prediction can
                      be tested in the near future by the satellite-borne GLAST
                      detector as well as by the ground-based Imaging Atmospheric
                      Cherenkov Telescpoes H.E.S.S., MAGIC, CANGAROO III, VERITAS
                      and by the Extensive Air Shower arrays ARGO-YBJ and
                      MILAGRO.},
      month         = {Jun},
      date          = {2008-06-18},
      organization  = {4th Patras Workshop on Axions, WIMPs
                       and WISPs, Hamburg (Germany), 18 Jun
                       2008 - 21 Jun 2008},
      keywords     = {photon: oscillation (INSPIRE) / blazar: emission (INSPIRE)
                      / emission: model (INSPIRE) / gamma ray: VHE (INSPIRE) /
                      showers: air (INSPIRE) / magnetic field (INSPIRE) /
                      transparency (INSPIRE) / Cherenkov (INSPIRE) / VERITAS
                      (INSPIRE) / GLAST (INSPIRE) / axion (INSPIRE) / WIMP
                      (INSPIRE) / AGN (INSPIRE)},
      cin          = {L},
      cid          = {I:(DE-H253)L-20120731},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      experiment   = {EXP:(DE-H253)HERA(machine)-20150101},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)15},
      eprint       = {0911.1056},
      howpublished = {arXiv:0911.1056},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:0911.1056;\%\%$},
      UT           = {WOS:00},
      doi          = {10.3204/DESY-PROC-2008-02/roncadelli_marco},
      url          = {https://bib-pubdb1.desy.de/record/297017},
}