Abstract
Infrared and optical observations of 4 complete samples of radio galaxies are reviewed in the light of the most recent observations. Evidence is found for evolution of the stellar populations of the galaxies in all the samples. The most recent data on a 0.1 Jy sample of radio galaxies selected at 2.7 GHz are used to show that (i) the optical-infrared colours indicate the presence of a very old stellar population; (ii) all radio galaxies exhibit some star formation activity after the initial formation epoch; (iii) there is a significant dispersion in the amount of star formation activity at any epoch.
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© 1988 Springer-Verlag
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Dunlop, J.S., Longair, M.S. (1988). Infrared and optical observations of distant radio galaxies. In: Lawrence, A. (eds) Comets to Cosmology. Lecture Notes in Physics, vol 297. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0118826
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DOI: https://doi.org/10.1007/BFb0118826
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