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Table 1

uv-fitting results.

Epoch ν Shape S ν Major axis/fwhm Axis ratio Position angle Spectral index
[GHz] [mJy] [mas] major/minor [°]

Mira A

17 Oct. 2014 94.2 Disc 35.03 ± 0.04 41.8 ± 0.4 1.20 ± 0.01 54 ± 2 1.73 ± 0.09
25 Oct. 2014a 94.2 Disc 34.52 ± 0.04 38.6 ± 0.4 1.28 ± 0.01 54 ± 1 1.70 ± 0.04
29 Oct. 2014 228.67 Disc 137.8 ± 0.2 43.28 ± 0.07 1.13 ± 0.02 51.0 ± 0.5 ...
228.67 Gaussian 10.13 ± 0.07 4.6 ± 0.5 1.0 ... ...
01 Nov. 2014 228.67 Disc 140.0 ± 0.2 43.36 ± 0.06 1.12 ± 0.02 50.8 ± 0.6 ...
228.67 Gaussian 8.98 ± 0.07 4.7 ± 0.5 1.0 ... ...

Mira B

17 Oct. 2014 89.06 Gaussian 2.50 ± 0.04 24 ± 2 1.0 ... 1.3 ± 0.2
25 Oct. 2014a 89.06 Gaussian 2.25 ± 0.04 18 ± 2 1.0 ... 1.3 ± 0.3
29 Oct. 2014 228.67 Gaussian 12.16 ± 0.09 25.7 ± 0.3 1.0 ... ...
01 Nov. 2014 228.67 Gaussian 11.98 ± 0.09 26.2 ± 0.3 1.0 ... ...

Notes.

(a)

The size of both Mira A and B are likely underestimated at the second epoch due to a marginally extended flux calibrator J2258-2758.

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