AGNs in the VHE gamma-ray era: a review.
Abstract
The last decade has been a ``silver age" for the study of AGN at Very High Energies (VHE, >100 GeV), made possible by a new generation of atmospheric Cherenkov Telescopes and now by Fermi at High Energies (∼0.1-100 GeV). Important progresses were achieved in three main areas: the solution of the EBL problem, the X-ray/TeV connection, and the location and size of the gamma-ray emitting regions. The results are revealing that we still miss some fundamental aspect of the jet emission in AGN.
- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- 2012
- Bibcode:
- 2012MmSAI..83..138C
- Keywords:
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- X-ray: blazars;
- Gamma-rays: theory;
- Radiation mechanism: non-thermal