Fig. A.2.
“Standard” self-similar H I surface brightness profile taken from Wang et al. (2020, 2014, 2016). The solid (black) curve connects the data points, while the gray shaded region shows the uncertainties as presented by Wang et al. (2020). The dashed (red) curve shows the quadratic fit, and the dotted line corresponds to a broken power-law that is however not a good approximation to the data.
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