Open Access
Fig. 1

Rms RV vs. spectral type for GRAhigh (orange), SGmed (red), SGlow (brown), ALLGRAhigh,SGmed (green), and ALLGRAhigh,SGlow (blue), for the best sampling (3650 points, no gaps). The dashed lines correspond to the configurations including GRAlow (same colour code). Individual values are shown as stars.
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