TY  - CONF
AU  - Roncadelli, Marco
AU  - De Angelis, Alessandro
AU  - Mansutti, Oriana
TI  - Detection of distant AGN by MAGIC: the transparency of the Universe to high-energy photons
IS  - arXiv:0911.1056
CY  - Hamburg
PB  - Deutsches Elektronen-Synchrotron, DESY
M1  - PUBDB-2016-01770
M1  - arXiv:0911.1056
SP  - 53-56
PY  - 2009
AB  - 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.
T2  - 4th Patras Workshop on Axions, WIMPs and WISPs
CY  - 18 Jun 2008 - 21 Jun 2008, Hamburg (Germany)
Y2  - 18 Jun 2008 - 21 Jun 2008
M2  - Hamburg, Germany
KW  - photon: oscillation (INSPIRE)
KW  - blazar: emission (INSPIRE)
KW  - emission: model (INSPIRE)
KW  - gamma ray: VHE (INSPIRE)
KW  - showers: air (INSPIRE)
KW  - magnetic field (INSPIRE)
KW  - transparency (INSPIRE)
KW  - Cherenkov (INSPIRE)
KW  - VERITAS (INSPIRE)
KW  - GLAST (INSPIRE)
KW  - axion (INSPIRE)
KW  - WIMP (INSPIRE)
KW  - AGN (INSPIRE)
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
UR  - <Go to ISI:>//WOS:00
DO  - DOI:10.3204/DESY-PROC-2008-02/roncadelli_marco
UR  - https://bib-pubdb1.desy.de/record/297017
ER  -