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

Bernard Pichon (LCCASSPMF); Emmanuel Difolco (ESO); Frederic Th\'evenin (LCCASSPMF); Pierre Kervella (LESIA); Pierre Morel (LCCASSPMF); Yveline Lebreton (GEPI)

arxiv: astro-ph/0501420 · v1 · pith:6R4FEJJGnew · submitted 2005-01-19 · 🌌 astro-ph

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

Frederic Th\'evenin (LCCASSPMF) , Pierre Kervella (LESIA) , Bernard Pichon (LCCASSPMF) , Pierre Morel (LCCASSPMF) , Emmanuel Difolco (ESO) , Yveline Lebreton (GEPI) This is my paper

classification 🌌 astro-ph

keywords deltadiameterevolutionarystarsstatusvincivltiagreement

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Using VLTI/VINCI angular diameter measurements, we constrain the evolutionary status of three asteroseismic targets: the stars $\delta$ Eri, $\xi$ Hya, $\eta$ 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 $\delta$ Eri we doubt on its classification as an RS CVn star.

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

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