Characteristic sizes of the Brγ-emitting region of S CrA N as a function of velocity (coded from blue to red colors) for August 19 (circles) and August 20 (squares). The red, green and blue areas correspond to the stellar, truncation, and corotation radii, respectively. The dashed gold line marks one-quarter of the half-light radius derived for the inner dusty ring model for the sake of comparison. Colored symbols with gray error bars in the background correspond to the sizes derived from individual files. The distance used is 154.2 pc.