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
Radio Galaxy Zoo: The Distortion of Radio Galaxies by Galaxy Clusters [PDF]
The Astronomical Journal, 2019 We study the impact of cluster environment on the morphology of a sample of 4304 extended radio galaxies from Radio Galaxy Zoo. A total of 87% of the sample lies within a projected 15 Mpc of an optically identified cluster.
A. F. Garon +11 more
semanticscholar +5 more sources
Radio galaxy populations and the multitracer technique: pushing the limits on primordial non-Gaussianity [PDF]
, 2014 We explore the use of different radio galaxy populations as tracers of different mass halos and therefore, with different bias properties, to constrain primordial nonGaussianity of the local type.
L. Ferramacho +3 more
openalex +3 more sources
Characterizing the Fast Radio Burst Host Galaxy Population and its Connection to Transients in the Local and Extragalactic Universe [PDF]
Astronomical Journal, 2021 We present the localization and host galaxies of one repeating and two apparently nonrepeating fast radio bursts (FRBs). FRB 20180301A was detected and localized with the Karl G.
S. Bhandari +25 more
semanticscholar +1 more source
CNN architecture comparison for radio galaxy classification [PDF]
, 2021 The morphological classification of radio sources is important to gain a full understanding of galaxy evolution processes and their relation with local environmental properties.
Burger Becker +3 more
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source
Revisiting the Fanaroff–Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS) [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The relative positions of the high and low surface brightness regions of radio-loud active galaxies in the 3CR sample were found by Fanaroff and Riley to be correlated with their luminosity.
B. Mingo +19 more
semanticscholar +1 more source
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
doaj +1 more source