Change in the unabsorbed surface flux (upper panel) and the photon index (lower panel) of the diffuse X-ray emission from Terzan 5 as a function of distance from the center of Terzan 5. The horizontal error bars show the spatial extent of the rings, and the vertical error bars show 1σ uncertainties. The unabsorbed surface flux of the LXB (subtracted from the Terzan 5 flux measurements shown) is also shown in the upper panel (dotted line with 1σ shaded region), which is assumed to be constant toward the Terzan 5 field.