Flux density distribution in the full map of Cha I (upper histogram), in fields Cha-Center and Cha-South (middle histogram), and in fields Cha-North and Cha-West (lower histogram). The middle and lower histograms were shifted vertically by –500 and –1000, respectively, for clarity. A Gaussian fit is overlaid as a thin line on each histogram. The Gaussian standard deviation is 12.2, 13.3, and 11.2 mJy/21.2″-beam for the full map, for fields Cha-Center and Cha-South, and for fields Cha-North and Cha-West, respectively.