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Fig. 3

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This contour plot shows the fraction of galaxies hosting a RL AGN in the stellar mass versus star formation rate plane. The value of for low-excitation (left panel) and high-excitation (right panel) radio galaxies is given by color gradients for which the legend is found in the colorbars on the right. Only radio-loud AGN with a L1.4   GHz ≥ 1024.0 W  Hz-1 were considered in the determination of . As the specific star formation rate (SFR/M) is broadly correlated with the Dn4000 value of a galaxy, each panel contains 2 diagonals, which are a guide to the eye on where the red, green and blue galaxy population are located.

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