[OIII] emission versus the mid-IR luminosity as measured by the WISE satellite

[OIII] emission versus the mid-IR luminosity as measured by the WISE satellite. The [OIII] fluxes of the objects discovered (asterisks) are 5-50 times higher than expected when compared to normal quasars at the same redshift range (black dots). This is direct evidence that the nuclear activity has substantially decreased, and the NLR still reflects an earlier, much more active state.