Results 21 to 30 of about 1,003,684 (284)
The Dynamics of Radio Galaxies and Double–Double Radio Galaxies [PDF]
Journal of Astrophysics and Astronomy, 2011 11 pages, 4 figures, Diffuse Radio Plasma Conference proceedings (held in Raman Research Institute, Bangalore, India)
Konar, C. +6 more
openaire +3 more sources
The Extragalactic Gamma-Ray Background from Core-dominated Radio Galaxies [PDF]
Astrophysical Journal, 2019 Recent radio surveys have discovered a large number of low-luminosity core-dominated radio galaxies that are much more abundant than those at higher luminosities.
F. Stecker, C. Shrader, M. Malkan
semanticscholar +1 more source
WATCAT: a tale of wide-angle tailed radio galaxies [PDF]
Astronomy & Astrophysics, 2019 We present a catalog of 47 wide-angle tailed radio galaxies (WATs), the WATCAT, mainly built including a radio morphological classification; WATs were selected by combining observations from the National Radio Astronomy Observatory/Very Large Array Sky ...
V. Missaglia +6 more
semanticscholar +1 more source
Simulating the Enrichment of Fossil Radio Electrons by Multiple Radio Galaxies
Galaxies, 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
Classifying Radio Galaxies with the Convolutional Neural Network [PDF]
, 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 representative survey of the dynamics and energetics of FRII radio galaxies [PDF]
, 2017 We report the first large, systematic study of the dynamics and energetics of a representative sample of Fanaroff–Riley type II (FR II) radio galaxies with well-characterized group/cluster environments. We used X-ray inverse-Compton and radio synchrotron
J. Ineson +3 more
semanticscholar +1 more source
General Physical Properties of Gamma-Ray-emitting Radio Galaxies
The 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
Fornax A, Centaurus A, and other radio galaxies as sources of ultrahigh energy cosmic rays [PDF]
, 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
RADIO DETECTION OF RADIO-QUIET GALAXIES [PDF]
The Astronomical Journal, 2008 We investigate the radio emission of ~185,000 quiescent (optically unclassifiable) galaxies selected from the Sloan Digital Sky Survey (SDSS). By median-stacking FIRST cutouts centered on the optically-selected sources, we are able to reach flux densities down to the 10s of microJy.
Hodge, J. A. +3 more
openaire +2 more sources
What is driving the evolution of the far-infrared radio correlation? [PDF]
Zbornik 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