Fig. 6.
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Major axis length of the central component, obtained through Gaussian fitting, versus flux density. The extended sources are marked as empty blue squares, the black dots are those with a full width at half maximum (FWHM) < 15″. The empty red circles are the low-brightness objects, that is, ones whose 3σ level contours do not reach a radius of 15″ but whose FWHM exceeds 15″.
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