Logarithmically-scaled 3.21 μm continuum emission from Cen A. The data have been scaled by a factor of 1.042 (see text) and spatially smoothed by an 8 × 8 boxcar before log scaling. The bar in the lower right corner illustrates 200 pc at the distance to Cen A (3.8 Mpc, Harris et al. 2010). The wedge to the right shows relative surface brightness levels.
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