Results 11 to 20 of about 893,289 (224)
Radio galaxies: unification and dust properties [PDF]
New Astronomy Reviews, 2003 The 2002 status of unification models for extragalactic radio sources is examined, with particular emphasis on the dust properties of these objects.
Barthel, P, van Bemmel, I
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Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?
The Astrophysical Journal Supplement Series, 2022 The environment of the high-redshift ( z = 1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas revealed by Chandra X-ray observations.
Valentina Missaglia +10 more
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Is the giant radio galaxy M 87 a TeV gamma-ray emitter? [PDF]
, 2003 For the first time an excess of photons above an energy threshold of 730 GeV from the giant radio galaxy M 87 has been measured at a significance level above 4 σ.
Mirzoyan, R. +110 more
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Arp 299-A: More than "just" a prolific supernova factory [PDF]
, 2010 We present partial results from our monitoring of the nuclear region of the starburst galaxy IC 694 (=Arp 299-A) at radio wavelengths, aimed at discovering recently exploded core-collapse supernovae, as well as to determine their rate of explosion, which
Marco Bondi +9 more
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Radio galaxy zoo EMU: towards a semantic radio galaxy morphology taxonomy
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present a novel natural language processing (NLP) approach to deriving plain English descriptors for science cases otherwise restricted by obfuscating technical terminology. We address the limitations of common radio galaxy morphology classifications by applying this approach.
Micah Bowles +22 more
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Radio Galaxy Zoo: A Search for Hybrid Morphology Radio Galaxies
The Astronomical Journal, 2017 Abstract Hybrid morphology radio sources (HyMoRS) are a rare type of radio galaxy that display different Fanaroff–Riley classes on opposite sides of their nuclei. To enhance the statistical analysis of HyMoRS, we embarked on a large-scale search of these sources within the international citizen science project, Radio Galaxy Zoo (RGZ ...
A. D. Kapińska +16 more
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On the environments of giant radio galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT We test the hypothesis that environments play a key role in enabling the growth of enormous radio structures spanning more than 700 kpc, an extreme population of radio galaxies called giant radio galaxies (GRGs). To achieve this, we explore (1) the relationships between the occurrence of GRGs and the surface number density of ...
Ting-Wen Lan 藍鼎文 +1 more
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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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Galaxies, 2018 We study two galaxy clusters with radio relics, 1RXS J0603.3+4214 and RXC J1053.7+5453, through X-ray and radio observations. Radio relics are diffuse non-thermal radio sources found in outskirts of galaxy clusters.
Motokazu Takizawa
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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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