Section of the FEROS spectra of HD 52298 (dotted line), Ganymede (solid line), and HD 32147 (dashed line). They were all degraded to the MARVELS resolution (R ~ 12,000) and the continua have been shifted vertically for clarity. The three spectral indices shown as examples are the same as in Figure 2. It is clear that their definitions are appropriate for the three stars, though their parameters are significantly different.