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Table D.1

PIONIER (2013 June/July) best-fit parameters of the parametric models

GAUSSIAN MODEL

Wavelengths [microns] 1.618 1.7 1.778
ΘFWHM [mas] 3.03 ± 0.1 3.07 ± 0.08 3.05 ± 0.09
Fs 0.31 ± 0.01 0.29 ± 0.01 0.26 ± 0.01
Fc 0.63 ± 0.01 0.65 ± 0.01 0.67 ± 0.01
Fh 0.06 ± 0.01 0.06 ± 0.01 0.07 ± 0.01
PA [deg] 140.6 ± 3.5 139.8 ± 1.9 139.0 ± 1.7
i [deg] 44.3 ± 1.9 45.6 ± 1.4 47.6 ± 1.5
Δx [mas] -0.35 ± 0.09 -0.39 ± 0.06 -0.53 ± 0.07
Δy [mas] 0.07 ± 0.07 0.05 ± 0.05 0.06 ± 0.05
χ2 2.4 3.0 4.4

RECONSTRUCTED IMAGES

Wavelengths [microns] 1.618 1.7 1.778

Hyper-parameter (α) 231.7 364 407
Iterations 37 36 34
χ2 1.01 1.01 1.0

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