Fig. 7
Mean 
component versus mean 2–10 keV band
luminosity observed in logarithmic scale, 
, per optical class. The optical
classes are shown as S1 (upside down red triangles), S1.8 (orange triangles), S2
(yellow diamonds), L1.8 (purple stars), L2 (light-blue pentagons), T2 (dark-blue
squares), SB-AGN (green circles), and SB (green circles with small black dots).
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