Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..50...23g&link_type=abstract
Astrophysics and Space Science, vol. 50, no. 1, Aug. 1977, p. 23-41.
Astronomy and Astrophysics
Astronomy
15
Active Galactic Nuclei, Astronomical Models, Black Holes (Astronomy), Quasars, Star Clusters, Magnetohydrodynamic Flow, Rotating Bodies, Secular Variations, Stellar Mass Accretion
Scientific paper
Candidate energy sources in quasars and active galactic nuclei are evaluated. Data on the character of optical variability in a number of objects seem to eliminate models which assume a compact star cluster. The concept of a magnetoid, that is, a supermassive rotating magnetoplasmic body, is considered less vulnerable. It is suggested that the final choice between magnetoid and accreting black hole will be possible only after the details of these models have been throughly elaborated, and when new observational data become available.
Ginzburg Viktor L.
Ozernoi L. M.
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