Fig. 3.
APOGEE radial velocities of stars located within one degree from the centre of the Sculptor dwarf galaxy. The LPV KG-4 is indicated. Each point represents the average of 11 individual APOGEE visits. This average is plotted along the X axis, and the scatter around this average is on Y axis. The median error of an individual visit is only 0.18 km s−1. The high scatter for KG-4 is consistent with its variability.
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