Width of the Maggie filament. Top panel: example emission profile perpendicular to the filament. At each step along the filament, three neighboring emission profiles (gray) are taken to estimate an average profile (black). A fit baseline has been subtracted from each profile. The cut along which the average emission profile is measured is marked in the upper panel of Fig. 3. To derive the widths, we fit the average emission profiles with Gaussian (blue), and Plummer-like functions with index p = 2 (yellow) and p = 4 (red), respectively. Bottom panel: fit widths of Maggie are plotted against the distance along the filament. The colors correspond to the fits shown in the upper panel. The gray bars show the widths that are discarded as these profiles could not be fit properly. The orange bar marks the position of the example profile shown in the upper panel.