Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?

@article{Albert2008VeryHighEnergyGR,
  title={Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?},
  author={J. Albert and E. Aliu and H. Anderhub and L. A. Antonelli and P. Antoranz and M. Backes and C. Baixeras and J. Barrio and H. Bartko and D. Bastieri and J. Becker and W. Bednarek and K. Berger and E. Bernardini and C. Bigongiari and A. Biland and R. Bock and G. Bonnoli and P. Bordas and V. Bosch-Ramon and T. Bretz and I. Britvitch and M. Camara and E. Carmona and A. Chilingarian and S. Commichau and J. Contreras and J. Cortina and M. Costado and S. Covino and V. Curtef and F. Dazzi and A. De Angelis and E. De Cea del Pozo and R. de los Reyes and B. De Lotto and M. De Maria and F. De Sabata and C. Mendez and A. Dom{\'i}nguez and D. Dorner and M. Doro and M. Errando and M. Fagiolini and D. Ferenc and E. Fernandez and R. Firpo and M. Fonseca and L. Font and N. Galante and R. L{\'o}pez and M. Garczarczyk and M. Gaug and F. Goebel and M. Hayashida and A. Herrero and D. H{\"o}hne and J. Hose and C. Hsu and S. Huber and T. Jogler and T. Kneiske and D. Kranich and A. La Barbera and A. Laille and E. Leonardo and E. Lindfors and S. Lombardi and F. Longo and M. Lopez and E. Lorenz and P. Majumdar and G. Maneva and N. Mankuzhiyil and K. Mannheim and L. Maraschi and M. Mariotti and M. Mart{\'i}nez and D. Mazin and M. Meucci and M. Meyer and J. Miranda and R. Mirzoyan and S. Mizobuchi and M. Mol{\'e}s and A. Moralejo and D. Nieto and K. Nilsson and J. Ninkovi{\'c} and N. Otte and I. Oya and M. Panniello and R. Paoletti and J. Paredes and M. Pasanen and D. Pascoli and F. Pauss and R. Pegna and M. P{\'e}rez-Torres and M. Persic and L. Peruzzo and A. Piccioli and F. Prada and E. Prandini and N. Puchades and A. Raymers and W. Rhode and M. Rib{\'o} and J. Rico and M. Rissi and A. Robert and S. R{\"u}gamer and A. Saggion and T. Saito and M. Salvati and M. Sanchez-conde and P. Sartori and K. Satalecka and V. Scalzotto and V. Scapin and R. Schmitt and T. Schweizer and M. Shayduk and K. Shinozaki and S. Shore and N. Sidro and A. Sierpowska-Bartosik and A. Sillanp{\"a}{\"a} and D. Sobczynska and F. Spanier and A. Stamerra and L. S. Stark and L. Takalo and F. Tavecchio and P. Temnikov and D. Tescaro and M. Teshima and M. Tluczykont and D. Torres and N. Turini and H. Vankov and A. Venturini and V. Vitale and R. Wagner and W. Wittek and V. Zabalza and F. Zandanel and R. Zanin and J. Zapatero},
  journal={Science},
  year={2008},
  volume={320},
  pages={1752 - 1754}
}
The atmospheric Cherenkov gamma-ray telescope MAGIC, designed for a low-energy threshold, has detected very-high-energy gamma rays from a giant flare of the distant Quasi-Stellar Radio Source (in short: radio quasar) 3C 279, at a distance of more than 5 billion light-years (a redshift of 0.536). No quasar has been observed previously in very-high-energy gamma radiation, and this is also the most distant object detected emitting gamma rays above 50 gigaelectron volts. Because high-energy gamma… Expand
Very high energy gamma-rays from flat spectrum radio quasars
  • E. Lindfors
  • Physics
  • Proceedings of the International Astronomical Union
  • 2014
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