SALT-HRS line profile morphology in velocity space of Hα (upper four curves) and Hβ (lower four curves), color coded by observation; black – obs1, blue – obs2, magenta – obs3 and orange – obs4. The primary’s underlying profiles have been subtracted from these data. While the Hα profiles exhibit some variability of intensity their velocities are quite constant, and are well modeled with two-component Gaussian fit with velocities at 314 km s⁻¹ (for the ambient nebular emission) and ∼325 km s⁻¹ (for the source emission). The latter has a FWHM of ∼60 km s⁻¹.