Revised ages for the stars in the solar neighbourhood

Y. K. Ng; G. Bertelli

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arXiv · astro-ph/9707043

Revised ages for the stars in the solar neighbourhood

Y. K. Ng·G. Bertelli

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Abstract

New ages are computed for the stars from the Edvardsson et al. (1993) data set. The revised values are systematically larger toward older ages (t>4 Gyr), while they are slightly lower for t<4 Gyr. A similar, but considerably smaller trend is present when the ages are computed with the distances based on Hipparcos parallaxes. The resulting age-metallicity relation has a small, but distinct slope of about 0.07 dex/Gyr

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Y. K. Ng, G. Bertelli. 1997-11-06. Revised ages for the stars in the solar neighbourhood. https://arxiv.org/abs/astro-ph/9707043

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