16 citations · 31 across the 2 of their papers we have counts for
3 papers
astro-ph2008★ 16 cited
Testing the AGB Scenario as the Origin of the Extreme-Helium Population in omega Centauri
Ena Choi, Sukyoung K. Yi
The most massive Galactic globular cluster, Omega centauri, appears to have multiple populations. Its bluest main sequence and extended horizontal branch stars are suggested to hav…
astro-ph2006★ 15 cited
First stars as a possible origin for the helium-rich population in omega Centauri
Ena Choi, Sukyoung K. Yi
The most massive Galactic globular cluster omega Cen appears to have two, or perhaps more, distinct main sequences. Its bluest main sequence is at the centre of debate because it h…
astro-ph2003
Mass and Angular Momentum Transfer in the Massive Algol Binary RY Persei
P. Barai, D. R. Gies, E. Choi +12
We present an investigation of H-alpha emission line variations observed in the massive Algol binary, RY Per. We give new radial velocity data for the secondary based upon our opti…