Abstract
AbstractThe principal component analysis method has been applied to two samples of nearby and distant quasars with well known radio data. Relationships between physical parameters pertinent to radio morphology has been searched and the significant number of dimensions of the manifold has been found to be two. The results of this analysis confirm the existence of a redshift luminosity correlation for a subset of 36 nearby, but to a lesser extent for 43 distant, quasars. An anticorrelation seems to exist between luminosity and linear sizes for the last sample. On the other hand, application of this analysis to the above samples indicates no correlation between the viewing angle and the other physical parameters.
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