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Fanaroff-Riley Classification

(FR Classification)
(a classification of the radio characteristics of radio sources)

The Fanaroff-Riley Classification (FR Classification) is a classification of Radio Sources intended to distinguish Radio Galaxy with lobes from Active Galactic Nuclei.

  • Class FR-I - Luminosity decreases from a central point.
  • Class FR-II - luminosity increases from a central point.

The first appears to be an AGN, the second, a radio Galaxy with Lobes (regions away from the center emitting much of the Radio Electromagnetic Radiation).


(classification,radio,galaxies)
http://en.wikipedia.org/wiki/Fanaroff-Riley_classification
https://ned.ipac.caltech.edu/level5/Glossary/Essay_fanaroff.html

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