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Fig. 1

image

CP coordinates (upper panel) and associated errors (lower panels) for the TW Hydrae association as a function of the number of walkers (with 200 iteration steps) used in the MCMC-based version of the CPSM. Each point is an average of 1000 MCMC realizations of the method and the error bars indicate the scatter of the solution given for each ensemble of walkers.

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