Results 11 to 20 of about 1,089,439 (292)

FR0 Radio Galaxies and Their Place in the Radio Morphology Classification [PDF]

open access: yesAstrophysical Journal, 2018
So-called FR0 radio galaxies have recently emerged as a family of active galaxies with all the same properties as FRI radio galaxies except for their ratio of core to total emission, which is about 30 times higher than that of FRI sources.
D. Garofalo, C. Singh
semanticscholar   +1 more source

General Physical Properties of Gamma-Ray-emitting Radio Galaxies

open access: yesThe Astrophysical Journal Supplement Series, 2023
We study the radio galaxies with known redshifts detected by the Fermi satellite after 10 yr of data (4FGL-DR2). We use a one-zone leptonic model to fit the quasi-simultaneous multiwavelength data of these radio galaxies and study the distributions of ...
Yongyun Chen   +6 more
doaj   +1 more source

Does the fir-radio correlation evolve with redshift in irregular and disk galaxies? [PDF]

open access: yesSerbian Astronomical Journal, 2021
It was confirmed that there is a strong linear correlation between the thermal far-infrared (FIR) and non-thermal radio emission of the star-forming galaxies.
Pavlović M.S.
doaj   +1 more source

What is driving the evolution of the far-infrared radio correlation? [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2019
Far infrared-radio correlation represents a linear relationship between far-infrared (FIR) and radio emission in star-forming galaxies. Previous observations have confirmed that this correlation is maintained over a large range of redshift and ...
Pavlović Marina S.   +1 more
doaj   +1 more source

Fornax A, Centaurus A, and other radio galaxies as sources of ultrahigh energy cosmic rays [PDF]

open access: yes, 2018
The origin of ultra-high energy cosmic rays (UHECRs) is still unknown. It has recently been proposed that UHECR anisotropies can be attributed to starbust galaxies or active galactic nuclei.
J. Matthews   +3 more
semanticscholar   +1 more source

Morphological-based Analyses for Parameterizing Symmetry in Radio Galaxies

open access: yesThe Astronomical Journal, 2023
The morphology of radio galaxies can provide significant clues to describe the formation and evolution of galaxies in the Universe. Here, we aim to extract the morphological parameters of radio galaxies and define symmetry criteria as some of the ...
Mohsen Javaherian   +2 more
doaj   +1 more source

Classifying Radio Galaxies with the Convolutional Neural Network [PDF]

open access: yes, 2017
We present the application of a deep machine learning technique to classify radio images of extended sources on a morphological basis using convolutional neural networks (CNN).
Arun Aniyan, K. Thorat
semanticscholar   +1 more source

A New Sample of (Wandering) Massive Black Holes in Dwarf Galaxies from High-resolution Radio Observations [PDF]

open access: yesAstrophysical Journal, 2019
We present a sample of nearby dwarf galaxies with radio-selected accreting massive black holes (BHs), the majority of which are non-nuclear. We observed 111 galaxies using sensitive, high-resolution observations from the Karl G.
A. Reines   +3 more
semanticscholar   +1 more source

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies

open access: yesThe Astrophysical Journal, 2023
We present the analysis of the magnetic field ( B -field) structure of galaxies measured with far-infrared (FIR) and radio (3 and 6 cm) polarimetric observations.
Alejandro S. Borlaff   +15 more
doaj   +1 more source

The triggering probability of radio-loud AGN: A comparison of high and low excitation radio galaxies in hosts of different colors [PDF]

open access: yes, 2012
Low luminosity radio-loud active galactic nuclei (AGN) are generally found in massive red elliptical galaxies, where they are thought to be powered through gas accretion from their surrounding hot halos in a radiatively inefficient manner.
Abazajian   +30 more
core   +3 more sources

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