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Table 4

Parameter space for a star+ring model searched with LITpro, and the final best-fit values.

Parameter Range Best H Best K Best optical

F/Ftot (0.0, 1.0) 0.56 ± 0.05 0.28 ± 0.05 0.65 ± 0.07
Fring/Ftot (0.0,1.0) 0.44 ± 0.05 0.72 ± 0.05 0.35 ± 0.07
θa (mas) (0.2, 0.7) 0.45±0.15 0.435b 0.435b
θ inac (1.0, 30.0) 2.5 ± 1.0 4.1 ± 0.4 3 ± 2
Δ(θ/2)ac (1.0, 15.0) 4.5 ± 1.0 4.0 ± 0.2 3 ± 2
d 11.8 ± 0.1 3.8 ± 0.3 2.1 ± 0.1

Notes.

(a)

θ denotes diameter (mas), so Δ(θ/2) is the width of the ring as the difference between its outer and inner radius.

(b)

Data impose no constraint, so value fixed from SED fit.

(c)

A strong correlation exists between these parameters, so the given errors reflect the range of good . We refer to the maps for a better estimate of the confidence interval.

(d)

This is the final obtained by fitting all parameters, as opposed to the maps where only the shown parameters are left free. So the number of degrees of freedom is slightly different in both cases.

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