Results 231 to 240 of about 101,827 (259)

Extragalactic Variable Radio Sources

Nature, 1970
Clues to the origin of the enormously energetic activity in quasars and galactic nuclei may come from observations of the varying radio emission from several objects outside the Galaxy. The varying signals from these objects often seem to come from areas which are only a few light months in diameter.
M. J. REES, M. SIMON
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Extended Extragalactic Radio Sources

Annual Review of Astronomy and Astrophysics, 1976
The most important feature of the extended sources is the double structure characterized in an ideal model by two extended radio-emitting regions situated symmetrically about the nucleus of an optical galaxy or QSO, with a characteristic overall size of about 100 kpc. Not all extended radio sources show this double structure. It has been found that at
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Jets in extragalactic radio sources

AIP Conference Proceedings, 1979
Particle acceleration in the extended parts of radio galaxies seems likely from a number of arguments. The radio jets which now seem commonly to connect the nucleus to the more extended structure of radio galaxies are a likely location for some of the necessary in situ acceleration.
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Morphology of Extragalactic Radio Sources

1976
“The astronomical instruments have been in use from very ancient days, handed down from one dynasty to another, and closely guarded by the official astronomers. Scholars have therefore had little opportunity to examine them, and this is the reason why unorthodox cosmological theories were able to spread and flourish.” - Fang, Hsuan-Ling, History of the
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On the Discovery of Extragalactic Radio Sources

Journal for the History of Astronomy, 1983
F. Graham Smith, Bernard Lovell
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Models of Extragalactic Radio Sources

1976
In these lectures I shall first review the basic problems of the energy supply to radio components and their containment (cf. Longair, Ryle and Scheuer 1973). Then I want to talk about models in which energy is transferred from the nucleus to the radio components by a relativistic beam (Rees 1971, Blandford and Rees 1974), and about the radio ...
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A Catalog Of Selected Compact Radio-Sources For The Construction Of An Extragalactic Radio Optical Reference Frame

, 1984
A. N. Argue, C. Vegt, B. Elsmore, J. Fanselow, A. Niell, R. Harrington, P. Hemenway, K. Johnston, H. Kuehr, I. Kumkova   +9 more
semanticscholar   +1 more source

Evolutionary features of the variations in the fluxes of selected extragalactic radio sources at 102 MHz, 22 GHz and 36 GHz

Astronomical and Astrophysical Transactions, 2005
A E Volvach
exaly  

Observations of extragalactic radio sources at 36 GHz

Astronomy Letters, 2000
N S Nesterov, A E Volvach
exaly  

A VLBI study of 20 southern extragalactic radio sources

Chinese Astronomy and Astrophysics, 1996
Zhi-Qiang Shen, Dong-Rong Jiang
exaly