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The Y 2 Isochrones |
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| Authors: | Sukyoung K Yi Pierre demarque Yong-Cheol Kim |
| Institution: | 1. University of Oxford, Keble Road, Oxford, OX1 3RH, UK 2. Department of Astronomy, Yale University, New Haven, CT, 06520-8101, U.S.A 3. Department of Astronomy, Yonsei University, Seoul, 120-749, Korea |
| Abstract: | We present a new set of isochrones in which the effect of the α-element enhancement is fully incorporated. The isochrone tables, together with interpolation routines in age and chemical composition, and in α/Fe] are available on request as well as from the electronic version of our ApJ papers. Newly derived ages of Galactic globular clusters using these isochrones are 20 to 30% smaller than previous estimates. |
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