a) Line-of-sight profiles of OH and c-C₃H₂ are plotted in blue with individual Gaussian fit components shown with black dashed lines and the complete Gaussian fit overlaid in solid black. b) Gaussian fit parameters of center velocity and line width for individual Gaussian components fit to the profiles of OH and c-C₃H₂. Horizontal dashed lines indicate line widths of 5  km s^-1 and 10  km s^-1. In all panels, black vertical lines indicate the velocities of line absorption by Sgr B2 at +64 and +82  km s^-1, and colored lines are located at −106, −73.5, −40, and +3  km s^-1.