Artifacts around bright sources before (left panels) and after (right panels) applying self-calibration phase-gain solutions. The right column panels also have tapering applied that circularizes the beam shape. The top three rows show the same source with a peak surface brightness of around S_p ≈ 16 mJy beam^-1, but located inside three different pointings that were observed during different time epochs. The fourth row shows artifacts around the brightest source in our data (S_p ≈ 18 mJy beam^-1), which is also extended. The final row illustrates the improvement when applying self-calibration solutions only from the phase calibrator as this source with S_p ≈ 2 mJy beam^-1 has insufficient S/N for self-calibration (see text for details).