Erratum: “Formation and Evolution of Galaxy Dark Matter Halos and Their Substructure” (ApJ, 667, 859 [2007])

Abstract

Figures 6, 7, and 8 of the original paper are incorrect. The radii of the spherical shells used to select the subhalos were too small by a factor equal to the cosmological expansion factor a=1/(1+z). Despite this error, the slopes of mass and velocity functions (Fig. 7) and the subhalo concentrations (Fig. 8) did show the correct qualitative behavior in the original paper. The abundance of substructure (Fig. 6), however, is larger at high redshifts in the corrected plot. As stated in the original paper, the subhalo mass loss still peaks between the epochs of turnaround and stabilization. But after a region has virialized the corrected abundance does not remain constant. It rather continues to decline for some more time at an ever decreasing rate and approaches a constant level at a significantly later epoch than right after the stabilization of the shell. The other statements and conclusions of the paper are unchanged.