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Radio Galaxies at TeV Energies: Preface

by Dorit Glawion
Landessternwarte, Zentrum für Astronomie, Universität Heidelberg, D-69117 Heidelberg, Germany
Current Address: Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany.
Galaxies 2020, 8(1), 18; https://doi.org/10.3390/galaxies8010018
Received: 31 January 2020 / Accepted: 10 February 2020 / Published: 22 February 2020
(This article belongs to the Special Issue Radio Galaxies at TeV Energies)
The majority of the known extragalactic sky from TeV gamma-ray energies consists of blazars having plasma jets pointing in the direction of the line-of-sight, which results in a large Doppler boosting of their emission. Up to now, only six galaxies with a larger viewing angle have been detected in the TeV range. These objects also show fascinating properties, such as fast variability or spectral features and are called “radio galaxies”. The TeV radio galaxies provide a unique laboratory for studying key aspects of active galactic nuclei. This Special Issue of Galaxies targets these exciting objects. View Full-Text
Keywords: active galactic nuclei; radio galaxies; emission: non-thermal; gamma-rays active galactic nuclei; radio galaxies; emission: non-thermal; gamma-rays
MDPI and ACS Style

Glawion, D. Radio Galaxies at TeV Energies: Preface. Galaxies 2020, 8, 18.

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