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Fig. 1.


Day 44 EVN image of V407 Cyg at 1.6 GHz. Beam size (shown by the ellipse on the bottom right corner) and noise levels are given in Table 1. Contours start at 3σ and increase by steps of . The top wedge shows the colour scale between 0.06 and 1.0 mJy beam−1. The white cross represents the position, and its uncertainty (magnified by a factor of 10 for visibility), of V407 Cyg in Gaia DR2 brought back to t = 0 by application of proper motions. The white dot indicates the position of the assumed centre of expansion (see text for details). The white box represents the inner region shown in Fig. 2.

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