Fig. 18
Mean signal (from the 15′ resolution maps) in each of the four regions shown in Fig. 16 (asterisks with error bars) compared with the predicted signal from analytical models. The models are shown in Fig. 17, as a dashed line for the spherical model and dotted line for the ellipsoidal model. The error bars are the dispersion in each region of the 
smoothed maps.
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