Source examples of the differences between the two sets of VLA images, D-configuration (background), and B-configuration (contours). The contour levels are −5.0, 5.0, 7.0, 10.0, and 15.0 times the 60 µJy beam⁻¹, the mean noise level of the images. The circles at the bottom left side indicate the beam sizes of the D-configuration (18″, white) and B-configuration (1.″5, green) images. Top: B-configuration compact radio source seen in projection in the area of a D-configuration extended radio source. Middle: D-configuration compact source that is resolved in three individual compact radio sources in the B-configuration images. Bottom: D-configuration compact source that is resolved as a fragmented radio source. The position of fragments considered in the final catalog are indicated with green crosses.