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

Abstract

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.

other location: http://www.obs-nice.fr/pichon/science.html ; Accepted for publication in Astron. Astrophys

References in corpus (2)

• Data reduction methods for single-mode optical interferometry - Application to the VLTI two-telescopes beam combiner VINCI
• New seismological results on the G0 IV eta Bootis

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