Left panel: derived quenching age (Q_Age) as a function of galactocentric radius from the marginalisation of the MC-SPF posterior distribution. Black points are from stellar libraries at solar metallicity (Z = 0.02). Blue triangles are from stellar libraries at subsolar metallicity (Z = 0.008). The grey error bars show the range of the derived quenching ages for regions shifted by 1/3 of their length along the major axis. The points belonging to the same region are shifted along the x-axis for clarity. The vertical dashed lines show the truncation radius of the Hα emission along the major axis; inside those lines there is ongoing star formation activity. Right panel: same as the left panel, but for the exponential characteristic timescale of the quenching (τ_Q).