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Fig. 2


Shape of the line broadening function in dependency of ψ. The model assumes a rotational velocity Vrotsini = 5 km s-1, an apparent radius Rstar = 5 mas, and a limb-darkening coefficient ϵ = 0.9. The spectrograph parameters, used for the geometrical shift, are a telescope size of 1 m, an incoming angle α of 65°, a standard grating constant, and an observation in the 100th order.

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