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| Paper: |
How relevant is the torus activity/geometry for the TeV gamma-rays emitted in the jets of M87? |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
197 |
| Authors: |
Donea, A.-C.; Protheroe, R. J. |
| Abstract: |
Motivated by unification schemes of active galactic nuclei, we review evidence for the existence of small-scale dust tori and BLR in BL Lacs and Fanaroff-Riley Class I radio galaxies. Since there is no direct evidence of any thermal emission from tori the task we search for indirect evidence (at any wavelength) for dust structures in the centres of host galaxies. We propose that an existing jet-accretion disk symbiosis can be extrapolated to provide a large scale-symbiosis between other important dusty constituents of the blazar/FR-I family. In the context of this symbiosis we discuss the interactions of GeV and TeV gamma-rays produced in the jet with the infrared radiation fields external to the jet in quasars and blazars, taking account the anisotropy of the radiation. We also review what kind of torus geometry would fit observations of quasars and blazars made at different wavelengths best. |
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