Search for Non-Gaussianities in the WMAP Data with the Scaling Index Method

Figure 9

The pixel-wise deviations 𝑆_𝑖,𝑟 of the primal (a) and of the smoothed scaling indices map (b), both based on the VW-band (WMAP 5-year) and the scale parameter 𝑟=0.2. The plot in the lower left only shows the values ≤−3.0 of the smoothed method. Except for the very small spots in the right part of this mapping, these regions are added to the KQ75-mask. The result is illustrated in the lower right plot.

(a)

(b)

(c)

(d)