Radial distribution of stars and brown dwarfs in Collinder 69: distance to λ Ori vs. cumulative distribution of sources normalized to the radius where no more brown dwarfs are found in Collinder 69. As in the previous figure, we include two sets of panels: on the left side, candidates and confirmed members (top panel for stars and bottom for substellar objects) and on the right panel, only spectroscopically confirmed members (as in the previous case, top for stars and bottom for substellar sources). Note the obvious void (grey shaded area) of brown dwarfs (and not so obvious but still present for stars too) from  ~8–12 arcmin distance to λ Ori.