Proper motion in mas yr-1 of three different types of objects as a function of (J − Ks) colour. (left) 47 Tuc upper main-sequence, subgiant, and RGB stars, those in region M of Fig. 6, middle panel; (middle) SMC RGB stars, those in region K of Fig. 6-left; (right) Background galaxies. The continuous lines indicate the median proper motion values for each group of objects and dashed lines mark the 1σ dispersion.
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