Two panels showing the positions of the reduced Shen quasars (colored crosses) on the new plane, defined as indicated on the axis labels. Two groups of five outlying quasars are represented inside the ellipses at either end of the horizontal axis. Upper panel: crosses are color-coded by black hole masses obtained from the Shen catalog, while the lower panel crosses are color-coded by 3000 Å luminosity also obtained from Shen. The black hole mass units are log(M_⊙) while luminosity units are log(erg cm⁻² s⁻¹ Å ⁻¹).