MAGIC observations of PG 1553+113 during a multiwavelength campaign in July 2006

J. Albert, E. Aliu, H. Anderhub, P. Antoranz, C. Baixeras, J. A. Barrio, H. Bartko, D. Bastieri, J. K. Becker, W. Bednarek, A. Berdyugin, K. Berger, C. Bigongiari, A. Biland, R. K. Bock, P. Bordas, V. Bosch-Ramon, T. Bretz, I. Britvitch, M. CamaraE. Carmona, A. Chilingarian, S. Commichau, J. L. Contreras, J. Cortina, M. T. Costado, V. Curtef, V. Danielyan, F. Dazzi, A. De Angelis, C. Delgado, R. De Los Reyes, B. De Lotto, D. Dorner, M. Doro, M. Errando, M. Fagiolini, D. Ferenc, E. Fernández, R. Firpo, M. V. Fonseca, L. Font, M. Fuchs, N. Galante, R. J. García-López, M. Garczarczyk, M. Gaug, F. Goebel, D. Hakobyan, M. Hayashida, T. Hengstebeck, A. Herrero, D. Höhne, J. Hose, C. C. Hsu, S. Huber, P. Jacon, T. Jogler, R. Kosyra, D. Kranich, R. Kritzer, A. Laille, E. Lindfors, S. Lombardi, F. Longo, M. López, E. Lorenz, P. Majumdar, G. Maneva, K. Mannheim, M. Mariotti, M. Martínez, D. Mazin, C. Merck, M. Meucci, M. Meyer, J. M. Miranda, R. Mirzoyan, S. Mizobuchi, A. Moralejo, D. Nieto, K. Nilsson, J. Ninkovic, E. Oña-Wilhelmi, N. Otte, T. Oya, M. Panniello, R. Paoletti, M. Pasanen, D. Pascoli, F. Pauss, R. Pegna, M. Persic, L. Peruzzo, A. Piccioli, E. Prandini, N. Puchades, A. Raymers, J. Rico, W. Rhode

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13 Citations (Scopus)

Abstract

The active galactic nucleus PG 1553+113 was observed by the MAGIC telescope in July 2006 during a multiwavelength campaign, in which telescopes in the optical, X-ray, and very high energies participated. Although the MAGIC data were affected by strong atmospheric absorption (calima), they were analyzed after applying a correction. In 8.5 h, a signal was detected with a significance of 5.0σ. The integral flux above 150 GeV was (2.6 ± 0.9) × 10-7 ph s-1 m-2. By fitting the differential energy spectrum with a power law, a spectral index of -4.1 ± 0.3 was obtained. © ESO 2009.
Original languageEnglish
Pages (from-to)467-469
JournalAstronomy and Astrophysics
Volume493
Issue number2
DOIs
Publication statusPublished - 1 Jan 2009

Keywords

  • Galaxies: active
  • Galaxies: BL Lacertae objects: individual: PG 1553+113
  • Gamma rays: observations

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