Results 1 to 10 of about 611 (50)

The Origin and Evolution of Giant Radio Galaxies

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Giant radio galaxies are arguably the least understood of jetted active galactic nuclei (AGN). We propose that radio galaxies are the product of large mergers that do not involve radio galaxies or radio quasars, such as in merging spiral galaxies, while ...
David Garofalo
doaj   +1 more source

Radio Galaxies at TeV Energies

open access: yesGalaxies, 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
doaj   +1 more source

Simulating the Enrichment of Fossil Radio Electrons by Multiple Radio Galaxies

open access: yesGalaxies, 2023
We simulate the evolution of relativistic electrons injected into the intracluster medium by five radio galaxies. We study the spatial transport and the emission properties of the injected radio plasma over a ∼5 Gyr period, and the sequence of cooling ...
Franco Vazza   +3 more
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

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

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

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

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

A search for candidate radio supernova remnants in the nearby irregular starburst galaxies NGC 4214 and NGC 4395 [PDF]

open access: yesSerbian Astronomical Journal, 2005
We present the results of a search for new candidate radio su­pernova remnants (SNRs) in the nearby starburst irregular galaxies NGC 4214 and NGC 4395 using archived radio observations made with the Very Large Array (VLA) at the wavelengths of 3.5 cm, 6 ...
Vukotić B.   +3 more
doaj   +1 more source

Viewing Classical Radio Galaxies with the Upgraded GMRT and MeerKAT—A Progress Report

open access: yesGalaxies, 2021
We present a progress report of a study of FR I and FR II radio galaxies. Several new morphological features in the radio emission are now revealed using the high (μJy) sensitivity reached in the range 550–1712 MHz, more than a factor of three, at the ...
Dharam V. Lal   +12 more
doaj   +1 more source

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