Model Gaussian profiles used in fitting each component for emission lines or multiplets toward the N and S filaments in M87, with velocity v_r relative to M87. Lines fit in this paper are shown with solid lines (red for redshifted lines and blue for blueshifted lines), and data for Hα come from Ford & Butcher (1979). The shaded region denotes 1σ uncertainty in the model profile. All of the lines in the N filament have approximately the same profiles, except for [Fe XXI], which approximately matches the line profiles observed for the nearby S filament. We hypothesize that the two filaments trace opposite sides of the radio lobe, and in our sightline the approaching side of the filament has not cooled much below 10⁷ K while the receding side has cooled down to 10³ K or below. We note that [Fe XXI] is only observed in the N filament, but we show it in both columns to allow for easier comparison with the other lines.