Astronomy & Astrophysics

Table 5: Statistical properties of the $\theta$ Cen and $\alpha$ Cen A sample batches. The values obtained when disabling the selection of the interferograms based on their piston properties are given in brackets for comparison.
$\theta$ Cen $\alpha$ Cen A

Reduced scans 386 (395) 277 (391)

Average $\mu ^2$ (%) 8.995 (8.999) 0.3180 (0.2949)

Stat. error ( $1\sigma$ ) 0.048 (0.050) 0.0095 (0.0142)

Rel. error $\sigma/\mu^2$ 0.53% (0.56%) 3.00% (4.81%)

Skewness s +0.023 (+0.013) -0.007 (+0.160)

Kurtosis k +0.164 (+0.062) +0.044 (-0.042)

**Table 5:** Statistical properties of the $\theta$ Cen and $\alpha$ Cen A sample batches. The values obtained when disabling the selection of the interferograms based on their piston properties are given in brackets for comparison.
	$\theta$ Cen	$\alpha$ Cen A
Reduced scans	386 (395)	277 (391)
Average $\mu ^2$ (%)	8.995 (8.999)	0.3180 (0.2949)
Stat. error ( $1\sigma$ )	0.048 (0.050)	0.0095 (0.0142)
Rel. error $\sigma/\mu^2$	0.53% (0.56%)	3.00% (4.81%)
Skewness s	+0.023 (+0.013)	-0.007 (+0.160)
Kurtosis k	+0.164 (+0.062)	+0.044 (-0.042)

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