Contrast curves resulting from the different reduction algorithms applied to NaCo L′ observationsin this work. The y-axis shows the 5σ contrast limits obtained from TRAP, the normal LOCI, and modified LOCI subtraction techniques (shown as blue, green, and red dotted line), and the equivalent flux ratio or sensitivity limits obtained using RSM algorithm at 50 and 90% TPR as yellow and black dotted lines, respectively.