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Seyferts and radio galaxies

Authors: W. Neil Johnson; Andrzej A. Zdziarski; Greg M. Madejski; William S. Paciesas; Helmut Steinle; Ying-Chi Lin;

Seyferts and radio galaxies

Abstract

Observations with Compton Gamma Ray Observatory have provided key insights to the high energy emission mechanisms in Active Galactic Nuclei (AGN) and clearly separate them into a class of Blazars, with apparent non-thermal jet emissions often peaking in the EGRET energy band, and into the Seyfert class with emissions more closely related to the accretion disk presumably energizing the nuclear black hole. OSSE measurements indicate that the high energy emission from Seyfert AGN has a high energy cutoff below ∼100–200 keV and no Seyferts have been detected by COMPTEL or EGRET. Here, we review the X-ray and γ-ray observations of Seyferts and Radio Galaxies and the broad band emission models that describe the observed spectral characteristics. A comparison of Seyfert 1, Seyfert 2, and radio galaxies can be made in the context of the AGN unification models.

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    Average
    influence
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Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Average
Top 10%
Top 10%
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