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Fig. 2.


Scatter plots of stellar astrometry for one of the YSO groups. Stars identified by the Bayesian model as probable members are black circles, probable contaminants are indicated with black “×” marks, and stars without Gaia astrometry are gray diamonds. 1σ uncertainties are indicated by the error bars. The red lines show the group’s mean parallax and proper motion, with 95% credible intervals indicated by shading around the lines. (Here, the results are precise enough that the shaded area is difficult to discern.) Negative distances (gray region) are excluded by the prior.

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