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High-resolution continuum map obtained using a 10 mas restoring beam (Sect. 2), red contours. The scale is logarithmic: the first contour is 1.5 mJy beam−1 and the jump is a factor 2; the dashed contours represent negative values. The expected position of the WD is shown with error bars (blue cross, see Sect. 3.2 and Appendix B); the Mira is coincident with the maximum of the high-resolution map. The central part of our standard continuum map (Fig. 1) is reproduced in black contours.
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