High-contrast L′-band LMIRCam images of HD 59686 A. Panels a), b), c), and d) show the residual images after running the PCA with 10, 38, 77, and 81 principal components. Panel e) shows the image obtained with a local, subannular PCA approach, and panel f) presents the residual image after subtracting the stellar PSF using the new LLSG algorithm. No signal of the companion star HD 59686 B is detected in any of the panels.