3 papers
astro-ph2005
Super Helium-Rich Population and the Origin of Extreme Horizontal-Branch Stars in Globular Clusters
Young-Wook Lee, Seok-Joo Joo, Sang-Il Han +7
Recent observations for the color-magnitude diagrams (CMDs) of the massive globular cluster Omega Centauri have shown that it has a striking double main sequence (MS), with a minor…
astro-ph2004
Y2 Isochrones with an Improved Core Overshoot
Pierre Demarque, Jong-Hak Woo, Yong-Cheol Kim +1
Convective core overshoot affects stellar evolution rates and the dating of stellar populations. In this paper, we provide a patch to the isochrones with an improved treatmen…
astro-ph2002
The Y^2 Stellar Evolutionary Tracks
Sukyoung K. Yi, Yong -Cheol Kim, Pierre Demarque
We present a database of the latest stellar models of the (Yonsei-Yale) collaboration. This database contains the stellar evolutionary tracks from the pre-main-sequence birth…