The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 37 Issue 2
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- Pages.139.2-139.2
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- 2012
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- 1226-2692(pISSN)
The Effects of Nitrogen and Oxygen Abundance Variations on The Evolutionary Tracks of Low-Mass Stars
- Na, Chongsam (Department of Astronomy, Yonsei University) ;
-
Lee, Young-Wook
(Department of Astronomy, Yonsei University)
;
- Han, Sang-Il (Department of Astronomy, Yonsei University) ;
- Bach, Kiehunn (Department of Astronomy, Yonsei University) ;
- Kim, Yong-Cheol (Department of Astronomy, Yonsei University)
- Published : 2012.10.17
Abstract
Recent observations show that there are variations in light elements, such as C, N, O, and Na, between the sub-populations in most globular clusters in the Milky Way. In order to investigate their effects on the evolution of stars in globular clusters, we constructed new sets of isochrones and horizontal branch evolutionary tracks under different assumptions as to the abundance of N and O ([N/Fe] and [O/Fe], respectively). In this talk, we will present our preliminary results from these calculations.
Keywords