Stokes I and V profiles emerging from a small concentration for different Δt (black dots). For visualization purposes, intensity profiles are normalized by the percentage of scans involved in the signal addition. Violet, orange, and red curves stand for the δI(λ)/δλ functions scaled by −CB_∥ for Δλ₁, Δλ₂, and Δλ₃, respectively. B_∥ values for Δλ₁, Δλ₂, and Δλ₃ in G are shown on each panel in violet, orange, and red.