One of the brightest sources detected shown with different scales of filtering, similarly as in Fig. 2. The peak flux of the object in this case decreases by 20% from the original images to the most compact one, while the size decreases by only 10%. Panel f) shows azimuthally averaged flux density profile with different scales of background emission removed. The green line corresponds to the filtering used for our catalog, which has 2 × 50′′ as maximum scale. As a comparison a Gaussian profile is indicated in red dashed line with crosses and a dotted line with diamond symbols shows a power-law fit.