Models of Tev Blazars

Mastichiadis, A.; Konopelko, A.; Kirk, J. G.; deJager, O. C.; Stecker, F. W.

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Models of Tev Blazars

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Konopelko, A.
Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Kirk, J. G.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Mastichiadis, A., Konopelko, A., Kirk, J. G., deJager, O. C., & Stecker, F. W. (n.d.). Models of Tev Blazars. In Quasar Cores and Jets, 25th meeting of the IAU, Joint Discussion 18, 23-24 July 2003, Sydney, Australia. IAU.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8E64-A

Abstract

The time-dependent one-zone model for blazar emission is reviewed. An application is made for the TeV gamma-ray spectra of two AGNs Mkn 501 and Mkn 421 that have almost the same redshifts: z=0.031 and z=0.034 respectively. The effect of intergalactic gamma-ray absorption is treated as an uncertainty in the measurement of the intrinsic spectrum. Although the objects differ we obtain satisfactory fits for both of them in a synchrotron self-Compton scenario. Compared to previous models our fits are characterised by higher values of the Doppler factor (>= 50) and an electron injection spectrum extending to higher energies (Gmax = 1.5x105). In the case of Mkn 421 the observed difference in spectral slope in X-rays and TeV gamma-rays between the high and low states can be explained as a variation of a single parameter - the maximum energy Gmax mc2 at which electrons are injected. These results are discussed with respect to recent particle acceleration theories in blazar jets.