NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-03-18 T15:05:12 PDT
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For refcode 1993A&A...275..427A:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1993A&A...275..427A Particle acceleration by multiple shocks at the hot spots of extragalactic radio sources A. Anastasiadis and L. Vlahos Department of Physics, University of Thessaloniki, GR-54006 Thessaloniki, Greece Received June 22, 1992; accepted April 4, 1993 Abstract. We present a model for the acceleration of energetic electrons by an ensemble of oblique shock waves at the hot spots of extended extragalactic radio sources. The energization of the electrons is based on the "shock drift" acceleration mechanism, using the adiabatic treatment, and electrons are subject to synchrotron losses as they travel between the shock fronts. We calculate numerically the energy distribution of electrons and the corresponding intensity of the radiation produced. We compare our results with the analytical solution of the Fokker-Planck equation. Our numerical and analytical results agree well with the existing observations. Key words: radio galaxies - radio hot spots - particle acceleration - synchrotron radiation - shock waves
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