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Particle Acceleration in Extragalactic Jets and Implications for the High-Energy Emission from Blazars

Published online by Cambridge University Press:  19 July 2016

R. Schlickeiser  and
C. D. Dermer
R. Schlickeiser
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
C. D. Dermer
Affiliation:
E. O. Hulburt Center for Space Physics, Naval Research Laboratory, Code 7653, Washington, DC 20375-5352, USA

Abstract

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We demonstrate that the prevalence of superluminal sources in the sample of γ-ray blazars and the peak of their luminosity spectra at γ-ray energies can be readily explained if the γ-rays result from the inverse Compton scattering of the accretion disk radiation by relativistic electrons in outflowing plasam jets. Compton scattering of external radiation by nonthermal particles in blazar jets is dominated by accretion disk photons rather than scattered radiation to distances of ∼ 0.01–0.1 pc from the central engine for standard parameters. The size of the γ-ray photosphere and the spectral evolution of the relativistic electron spectra constrain the location of the acceleration and emission sites in these objects.

Keywords

γ-raysblazarsemission processparticle acceleration
Type
Multi-wavelength Continuum Emission of AGN
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 29 - 32
Copyright
Copyright © Kluwer 1994 

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