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Paper: Different Angles on Active Galaxies: Where are We with Regard to Unification?
Volume: 373, The Central Engine of Active Galactic Nuclei
Page: 435
Authors: Shastri, P.
Abstract: With the realization that orientation plays a dominant role in the appearance of active galaxies, much of AGN research has been worked into the operating framework of the “unified scheme,” wherein active galaxies are broadly classified into three physically distinct classes: radio-quiet, radio-loud Fanaroff-Riley I and radio-loud Fanaroff-Riley II, with the appearance in each of the three cases being dominated by orientation alone. The following is a brief summary of the current understanding on the domain of validity of the scheme.
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