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Table 1

Statistics of the stacked VLBI residual images of SN 1993J.

Without opacity evolution With opacity evolution
Freq. Peak RMS Peak RMS
(GHz) (μJy beam-1) (μJy beam-1) (μJy beam-1) (mJy beam-1)

1.7 370 70
5.0 180 28 102 25
8.4 320 68 245 66

Notes. The beam used for the intensity normalization is the average of the restoring beams in the stacked images.

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