P3/P0 profile. P3/P0 calculated in 8 apertures (0.3–1 r₅₀₀) is shown for 3 different clusters. The horizontal lines show the simple (solid line) and the morphological P3/P0 boundaries (dotted lines). A115 (red asterisks) shows a clear second component, which is located around 0.8 r₅₀₀. In the r₅₀₀ aperture it is thus classified as highly disturbed. The Bullet cluster (green circles) also clearly shows a second component, however this component lies at 0.3 r₅₀₀ and thus P3/P0 becomes less important for larger apertures. A2204 (black crosses) on the other hand is a regular cluster, which does not reach a large P3/P0 value in any aperture.