(a) Contour plots of the joint distributions between the average |v_{He²⁺ − p}|/V_A and collisional age (A_col). SFRs within (outside) ICMEs are plotted in blue (red), and counts are normalized to the overall maximum. Bin sizes are ${\mathrm{\Delta }}_{{log}_{10}}^x$ = 0.13 and Δy = 0.04. Error bars represent the 16th, 50th, and 84th percentile within that x bin. (b) Contour plots of the joint distributions between the average |v_{He²⁺ − p}|/V_A and the Alfvénicity parameter (C_vB). Bin sizes are Δx = 0.04 and Δy = 0.04. (c) 16th, 50th, and 84th percentile of |v_{He²⁺ − p}|/V_A within each proton velocity bin (bin size = 20). Data points covered by SFRs outside ICMEs are plotted in dark red, and data points covered by time periods that are neither SFRs nor ICMEs in orange. (d) Same as panel a but for data points covered by MCs. (e) Same as panel b but for data points covered by MCs. (f) Same as panel c but for data points covered by MCs, with the contour plot of the joint distribution.