Typical spectra of faint radio sources (2dFGRS, Sadler et al. 1999)

• Star-forming galaxy, z=0.14 (40% of 2dFGRS/NVSS)

• Emission-line AGN, z=0.15 (10%)

• Absorption-line AGN, z=0.14 (50%)

Ha

Hb

[OIII]

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