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Variable High Energy Emission of Blazars

  • G. Madejski
  • T. Takahashi
  • H. Kubo
  • M. Sikora
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 218)

Abstract

Perhaps one of the most interesting discoveries made with the EGRET in­strument onboard of the Compton Gamma-ray Observatory was that many blazars are strong GeV 7-ray emitters. This class of compact extragalac­tic sources consists of highly polarized, rapidly variable flat radio-spectrum quasars, showing broad emission lines, as well as the lineless BL Lac ob­jects. Importantly, perhaps the most stringent constraints on the models of blazars arise from the rapid, large-amplitude variability observed in many different wavebands.

Keywords

Lorentz Factor Spectral Variability Broad Emission Line Bulk Lorentz Factor Intercloud Medium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • G. Madejski
    • 1
  • T. Takahashi
    • 2
  • H. Kubo
    • 2
  • M. Sikora
    • 3
  1. 1.NASA/GoddardGreenbeltUSA
  2. 2.ISASSagamiharaJapan
  3. 3.Copernicus Ctr.WarsawPoland

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