Fig. 12.
Left: zoom-in on the Toothbrush cluster from Fig. 10 (rms noise: ∼3 mJy beam−1, resolution: 37″ × 29″). Center: same dataset of the image of the left but re-imaged at resolution: 18″ × 11″. Here, the effect of the ionospheric corruption mostly affecting long baselines is evident. Right: final image after direction-dependent calibration and facet self-calibration (rms noise: 1.3 mJy beam−1, resolution: 18″ × 11″). In all images, the synthesised beam is shown in the bottom-left corner.
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