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Fig. 5

image

Residuals (observed – predicted) of the fits of different limb darkening models to the squared visibilities of α Cen A. The open circles indicate V2 residuals close to the minima of the visibility function (V2< 10-3) for which the fit is potentially more unstable. The fixed linear and 4-parameter LD models assume coefficient values from Claret & Bloemen (2011).

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