The diameter and evolutionary state of Procyon A. Multi-technique modeling using asteroseismic and i

@article{Kervella2003TheDA,
title={The diameter and evolutionary state of Procyon A. Multi-technique modeling using asteroseismic and i},
author={Pierre Kervella and F. Th{\'e}venin and P. Morel and Gabrielle Berthomieu and Pascal J. Bord{\'e} and Janine Provost},
journal={Astronomy and Astrophysics},
year={2003}
}
• Published 4 September 2003
• Physics, Geology
• Astronomy and Astrophysics
We report the angular diameter measurement obtained with the VINCI/VLTI instrument on the nearby star Procyon A ( α  CMi A, F5IV–V), at a relative precision of ± 0.9%. We obtain a uniform disk angular diameter in the K  band of $\theta_{\rm UD} = 5.376\pm0.047$ mas and a limb darkened value of $\theta_{\rm LD} = 5.448\pm0.053$ mas. Together with the hipparcos parallax, this gives a linear diameter of $2.048\pm0.025$ $D_{\odot}$. We use this result in combination with spectroscopic, photometric…

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