Comparison of the absolute radial variation of k₀ from three kinematic extractions for PGC 015524. The blue line shows δk₀ from the nominal extraction (same as in Fig. 4). The orange dashed line shows δk₀ of the main kinematic components from a two components pPXF fit. The dashed dotted green line shows the δk₀ from the kinematic extraction after removing a representative spectrum of the secondary component from the cube. The variation in δk₀ seems to originate in the existence of a secondary component which dominates the outer parts.