Best-fitting model of a co-rotating stellar disk. From top to bottom: Radial profiles of line-of-sight velocity, velocity dispersion, and flux ratio of each component with respect to total. The black circles correspond to data, blue circles to the co-rotating disk, red circles to the host galaxy, and the solid green line to the single-component fit of the best-fitting model obtained by combining the best-fitting spectra of the two components. Blue and red lines shows the fraction of total flux for the co-rotating disk and host galaxy, respectively. The best fit unveils the presence of counter-rotating stars, despite the starting guesses derived from the best-fitting toy model representing two co-rotating systems.