Table 1

Different sets of geometrical-models compared to the HR 5171 A AMBER/VLTI dataset.

Geometrical Achromatic Flux ratio in percent Reduced
model parameters 1.65 μm 2.10 μm 2.33 μm χ 2

UD+GD 3.67/4.65 mas 80/20% 50/50% 35/65% 30

UD+GD 3.39/4.76 mas 58/35/7% 58/33/9% 30/62/8% 8.6
+offset PS ρ:1.45 mas, θ =  −121°

UD+GD 3.39/4.76 mas 57/34/9% 58/30/12% 29/60/11% 8.2
ρ:1.45 mas, θ =  −121°
+offset UD 1.8 mas

Notes. UD, GD and PS stand for uniform disk, Gaussian disk and point source, respectively. ρ and θ stand for the separation and position angle of the secondary, respectively. The wavelength-dependent parameters are provided for three selected wavelengths and the achromatic parameters (UD diameter, GD FWHM, and PS position) are presented separately.

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