• Fermi-LAT View of Bright Flaring Gamma-Ray Blazars

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/032/01-02/0169-0172

    • Keywords

       

      Gamma-ray sources; active galaxies; transients.

    • Abstract

       

      The Fermi LAT provides a continuous and uniform monitoring of the Universe in the gamma-ray band. During the first year many gamma-ray blazar flares, some unidentified transients and emission by the Sun while in a quiet state were promptly detected. This is mainly due to the design of the mission, featuring a detector, the LAT with a wide field of view, and to the operation of the spacecraft itself, that can cover every region of the sky every 3 hours. Nevertheless, the scientific exploitation of this monitoring is more fruitful when early information about transients reaches a broader community. In this respect, the indefatigable activity of flare advocates, who worked on weekly shifts to validate the results and quickly broadcast information about flares and new detections, was the key to most scientific results.

    • Author Affiliations

       

      D. Bastieri1 2 S. Ciprini3 4 5 D. Gasparrini6

      1. Dipartimento di Fisica ‘G. Galilei’, Università di Padova 35131 Padova, Italy.
      2. N.F.N. Sezione di Padova 35131 Padova, Italy.
      3. Dipartimento di Fisica, Università di Perugia 06100 Perugia, Italy.
      4. Agenzia Spaziale Italiana & Istituto Nazionale di Astrofisica, Rome, Italy.
      5. Tuorla Obs., Department of Physics and Astronomy, University of Turku, 21500 Piikkiö, Finland.
      6. ASI Science Data Center, 00044 Frascati, Rome, Italy.
    • Dates

       
  • Journal of Astrophysics and Astronomy | News

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