Profiles of U_r from stacking on temperature (top) and E-mode (bottom) extrema for the four component-separation methods. The best-fit curves for each component-separation method are also shown, with α values given in the fourth column of Table 1. We have included both hot and cold spots in this figure, i.e., we have co-added the negative of the profile from cold spots to the profile of the hot spots. Error bars correspond to 68% confidence regions.