Spectro-images for each of the slit positions in Fig. 2 from Chu (1997). Emission lines from Hα and [N_II ] are indicated. The solid red line indicates the rest wavelength of Hα, while the dashed red lines indicate redshifted positions with recessional velocities from 100–400 km s⁻¹ in steps of 100 km s⁻¹. We note that the horizontal lines in each image are the continua of stars in the slits, marked by the green circles in Fig. 2.