VLTI/VINCI diameter constraints on the evolutionary status of delta Eri, xi Hya, eta Boo

Using VLTI/VINCI angular diameter measurements, we constrain the evolutionary status of three asteroseismic targets: the stars $δ$ Eri, $ξ$ Hya, $η$ Boo. Our predictions of the mean large frequency spacing of these stars are in agreement with published observational estimations. Looking without success for a companion of $δ$ Eri we doubt on its classification as an RS CVn star.

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