The 2-point (upper left), pseudo-collapsed (upper right), equilateral 3-point (lower left), and rhombic 4-point (lower right) correlation functions for the SMICA map (N_side = 64). Correlation functions are shown for the analysis performed on negative (blue) and positive (red) hemispheres determined in the Ecliptic, Galactic, Doppler boost (DB), dipole modulation (DM), and power asymmetry (PA) coordinate frames. The shaded dark and light grey bands indicate the 68% and 95% confidence regions, respectively. See Sect. 4.3 for the definition of the separation angle θ.