Results 21 to 30 of about 881,876 (240)
Radio Galaxies—The TeV Challenge [PDF]
Galaxies, 2018 Over the past decade, our knowledge of the γ -ray sky has been revolutionized by ground- and space-based observatories by detecting photons up to several hundreds of tera-electron volt (TeV) energies. A major population of the γ -ray bright objects are active galactic nuclei (AGN) with their relativistic jets pointed along our line-of-sight ...
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RADIO RELICS IN CLUSTERS OF GALAXIES
Journal of The Korean Astronomical Society, 2004 6 pages, 8 figures. Proceedings of the 3rd Korean Astrophysics Workshop "Cosmic Rays and Magnetic Fields in Large Scale Structure", Pusan, Korea, August 2004, eds. H. Kang & D.
GIOVANNINI, GABRIELE, FERETTI L.
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The Extended Radio Structures of Quasars and Radio Galaxies [PDF]
Symposium - International Astronomical Union, 1986 We have observed 20 classical double radio galaxies and quasars with MERLIN at 151 MHz. We discuss the systematic variation of the bridge structures with radio power and the nature of the identification.
J.P. Leahy, P.W. Stephens, T.W.B. Muxlow
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Dynamics of Powerful Radio Galaxies
Galaxies, 2023 Analytical models describing the dynamics of lobed radio sources are essential for interpretation of the tens of millions of radio sources that will be observed by the Square Kilometre Array and pathfinder instruments. We propose that historical models can be grouped into two classes in which the forward expansion of the radio source is driven by ...
Ross Turner, Stanislav Shabala
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Radio Galaxy Zoo: new giant radio galaxies in the RGZ DR1 catalogue [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT In this paper, we present the identification of five previously unknown giant radio galaxies (GRGs) using Data Release 1 of the Radio Galaxy Zoo citizen science project and a selection method appropriate to the training and validation of deep learning algorithms for new radio surveys.
H Tang +7 more
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, 2001 4 pages, 3 figures, submitted to 'Particles & Fields in Radio Galaxies' eds Laing & Blundell, ASP conference ...
Jackson, C, Wall, J
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The 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
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Viewing Classical Radio Galaxies with the Upgraded GMRT and MeerKAT—A Progress Report
Galaxies, 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
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Radio Galaxies at VHE Energies [PDF]
Galaxies, 2018 Radio Galaxies have by now emerged as a new γ-ray emitting source class on the extragalactic sky. Given their remarkable observed characteristics, such as unusual gamma-ray spectra or ultrafast VHE variability, they represent unique examples to probe the nature and physics of active galactic nuclei (AGN) in general.
Frank Rieger, Amir Levinson
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Early assembly of the most massive galaxies [PDF]
, 2009 The current consensus is that galaxies begin as small density fluctuations in the early Universe and grow by in situ star formation and hierarchical merging(1).
Chris A. Collins +53 more
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