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Fig. 2

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Two components of AB Dor near apastron on 1 January 2009, observed with VLT/NACO. North is up, east is left; the scale is 0.13 arcsec/pix. The contours indicate 95, 50, 20, 10, and 5% of the maximum flux. The crosses indicate the positions of the two components as determined by our 2D Gaussian model. The downward blob, most pronounced in the 10%–contour, is due to a pronouncedly asymmetric wing of the PSF of this image.

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