Maps of the MERLIN 18 cm reconstructed images of the detected sources (detection threshold 3σ). Contours refer to  − 2 (dashed), 2, 3, 4, 5, and 6 times the σ in the image. Except for sources 7 and 9, for which the contours refer to  −2, 2, 3, 4, 8, 16, 32, ... times the σ. All σ values are given in Table 3. The beams are indicated in the bottom left corner of the maps. North is up, East is left. Sources with EVN follow-up observations are shown in Fig. 3.