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Astrophysics and Space Science

, Volume 291, Issue 3–4, pp 261–262 | Cite as

The Y2 Isochrones

  • Sukyoung K. Yi
  • Pierre demarque
  • Yong-Cheol Kim
Article

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.

stellar evolution 

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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Sukyoung K. Yi
    • 1
  • Pierre demarque
    • 2
  • Yong-Cheol Kim
    • 3
  1. 1.University of OxfordOxfordUK
  2. 2.Department of AstronomyYale UniversityNew HavenU.S.A
  3. 3.Department of AstronomyYonsei UniversitySeoulKorea

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