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Nonthermal Emissions from a Head–Tail Radio Galaxy in 3D Magnetohydrodynamic Simulations [PDF]
The Astrophysical Journal, 2023 We present magnetohydrodynamic simulations of a jet–wind interaction in a galaxy cluster and the radio to gamma-ray and neutrino emissions from this “head–tail galaxy.” Our simulation follows the evolution of cosmic-ray (CR) particle spectra with energy ...
Takumi Ohmura +4 more
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FIRST radio galaxy data set containing curated labels of classes FRI, FRII, compact and bent [PDF]
Data in Brief, 2023 Automated classification of astronomical sources is often challenging due to the scarcity of labelled training data. We present a data set with a total number of 2158 data items that contains radio galaxy images with their corresponding morphological ...
Florian Griese +4 more
doaj +2 more sources
Universe, 2023 The discovery of diffuse radio emission in galaxy clusters proved the existence of energetic cosmic-ray electrons and cosmic magnetic fields on Mpc-scales in the Universe.
Denis Wittor
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Enigmatic Emission Structure around Mrk 783: Cross-Ionization of a Companion 100 kpc Away
Universe, 2023 Mrk 783 is a narrow-line Seyfert 1 galaxy that possesses a relatively large two-sided radio emission extending up to 14 kpc from the active nucleus possibly connected with a large-scale ionized gas emission. We obtained a deep [O iii] image that revealed
Alexei V. Moiseev +2 more
doaj +1 more source
The Astrophysical Journal, 2023 The Dragonfly galaxy (MRC 0152-209), the most infrared-luminous radio galaxy at redshift z ∼ 2, is a merger system containing a powerful radio source and large displacements of gas.
Sophie Lebowitz +10 more
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On the Encounter between the GASP Galaxy JO36 and the Radio Plume of GIN 049
The Astrophysical Journal, 2023 We report the serendipitous discovery of an unprecedented interaction between the radio lobe of a radio galaxy and a spiral galaxy. The discovery was made thanks to LOFAR observations at 144 MHz of the galaxy cluster A160 ( z = 0.04317) provided by the ...
Alessandro Ignesti +17 more
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The Interplay between Radio AGN Activity and Their Host Galaxies
Galaxies, 2023 Radio activity in AGN (Active Galactic Nuclei) produce feedback on the host galaxy via the impact of the relativistic jets on the circumnuclear gas. Although radio jets can reach up to several times the optical radius of the host galaxy, in this review ...
Guilherme S. Couto +1 more
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Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
The Astrophysical Journal Supplement Series, 2022 The environment of the high-redshift ( z = 1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas revealed by Chandra X-ray observations.
Valentina Missaglia +10 more
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Spectroscopic confirmation of a galaxy cluster associated with 7C1756+6520 at z=1.416 [PDF]
, 2010 We present spectroscopic follow-up of an overdensity of galaxies photometrically selected to be at 1 ...
A. Galametz +38 more
core +2 more sources
Radio Galaxies at TeV Energies
Galaxies, 2022 Unlike blazars, radio galaxies have jets that are misaligned relative to our line-of-sight. This misaligned geometry provides us with a unique view of both the jet and super massive black hole.
Cameron Rulten
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