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Paper: Some Theoretical Studies of Two Gamma-Ray Blazars: PKS 0528+134 and MRK 421
Volume: 144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
Page: 93
Authors: Qian, S. J.; Zhang, X. Z.; Witzel, A.; Krichbaum, T. P.; Britzen, S.; Kraus, A.
Abstract: The high energy gamma-ray flares observed in PKS 0528+134 are interpreted in terms of the external inverse Compton scattering (EICS) mechanism. The evolutional relationship between the gamma-ray flares and the associated mm-radio outbursts is investigated. The TeV/X-ray flare detected in May of 1994 from Mrk 421 is interpreted in terms of the SSC mechanism and it is shown that it may be due to the acceleration of relativistic electrons with an initially flat energy spectrum (N(E) ~ E^{-s} with s ~1.5), rather than just a flattening of the high energy tail in the electron energy distribution of the source in the quiescent state.
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