Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983s%26t....66...19p&link_type=abstract
Sky and Telescope (ISSN 0037-6604), vol. 66, July 1983, p. 19-22.
Astronomy and Astrophysics
Astronomy
2
Black Holes (Astronomy), Extragalactic Radio Sources, Plasma Interactions, Synchrotron Radiation, Computerized Simulation, Electromagnetic Fields, Particle Motion, Plasma Clouds, Rotating Plasmas
Scientific paper
The need to use black holes in the mechanism accounting for powerful extragalactic objects such as double radio sources is examined. An alternative explanation for the emission of synchrotron radiation by such sources as Cygnus A, which was made possible through the use of powerful supercomputers to calculate the motions of large numbers of particles in electromagnetic fields, is presented which is based on electric field generation by a rotating plasma cloud in a magnetic field. Results of numerical calculations for the interaction of two such neighboring plasma clouds are presented which account for a burst of synchrotron radiation, as well as the ejection of plasmoids and oppositely directed beams, which are frequently observed in extragalactic radio sources.
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