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Fig. 2

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Mean values ; ri > rmin, N =  ∑ i1; for tracers outside the spherical surface of radius rmin shown as a function of that radius (the vertical bars represent the standard deviation for random subsets with 7/8 of the elements). The curve in the top (top, gray) (the SI sample) discards only Leo I; the curve in the middle (middle, black) discards an additional single tracer J160826.42+065542.3 with ; the curve in the bottom (bottom, gray) (the SII sample), in addition to the previous two tracers, discards 4 more tracers (88-TARG37, Hercules, J234809.03-010737.6, and J124721.34+384157.9) with . The two lower curves are approximately flat in a wide range of radii 40   kpc < rmin < 90   kpc. The thin straight lines show the mean values in that region. It is important to note that the resulting mass estimate for sample SI compared to that for sample SII is increased by only a factor of 1.16, which is comparable to, or even less than, model errors for the MW mass in the literature.

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