Fig. 3.
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Map of the χ2 minimization fit to the GRAVITY observations of 21−22 November 2016 using the PMOIRED algorithm. The explored angular separation (δRA, δDec) represents the position of Achernar B relative to A. The starting positions of the χ2 minimum searches are marked with gray “+” symbols. The best-fit position is marked with a circle close to the center of the diagram.
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