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Fig. 1

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Maximum likelihood best-fit parameters for a set of 100 simulations. The dotted lines show the true, original values used: κ = 1.5 star pc-2, β = 1.8, A0 = 0.3 mag, and σ = 0.5 pc. Note how the points, representing the individual best-fits, cluster around the true values. The ellipses, showing the expected 3-σ errors as deduced from the Fischer information matrix, are in excellent agreement with the observed distribution of points.

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