Fig. 3.
Top: radio luminosity at 3 GHz versus redshift showing the multi-component radio sources compared to the single-component radio sources at 3 GHz. Symbols: red circles are multi-component AGN; blue stars are multi-component SFGs; green circles/stars are for uncertain class, where a circle is for AGN and a star for SFG based on the radio excess (see Sect. 3.1); small black crosses show the single-component radio sources at 3 GHz. Bottom: flux density histogram showing the multi-component objects (AGN in red, uncertain in green and SFGs in blue) relative to the full 3 GHz sample (grey).
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