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Journal Article

Gamma-Rays from Non-Blazar AGN

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Rieger,  Frank M.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Rieger, F. M. (2017). Gamma-Rays from Non-Blazar AGN. AIP Conference Proceedings, 1792: 020008. doi:10.1063/1.4968893.


Cite as: https://hdl.handle.net/21.11116/0000-0000-B2C5-8
Abstract
Non-blazar Active Galactic Nuclei (AGN) have emerged as a new gamma-ray emitting source class on the extragalactic sky and started to deepen our understanding of the physical processes and the nature of AGN in general. The detection of Narrow Line Seyfert 1 galaxies in the Fermi-LAT energy regime, for example, offers important information for our understanding of jet formation and radio-loudness. Radio galaxies, on the other hand, have become particularly interesting at high (HE) and very high (VHE) gamma-ray energies. With their jets not directly pointing towards us (i.e. "misaligned"), they offer a unique tool to probe into the nature of the fundamental (and often "hidden") physical processes in AGN. This review highlights and discusses some of the observational and theoretical progress achieved in the gamma-ray regime during recent years, including the evidence for unexpected spectral hardening in Centaurus A and extreme short-term variability as seen in IC 310 and M87.