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Synthetic Color-Magnitude Diagrams for omega Centauri and Other Massive Globular Clusters with Multiple Populations
Chang H. Ree, Suk-Jin Yoon, Soo-Chang Rey +1
We have constructed synthetic color-magnitude diagrams (CMDs) for omega Cen and other massive globular clusters with apparently peculiar CMD morphology. Our population models, whic…
Omega Centauri as a Disrupted Dwarf Galaxy: Evidence from Multiple Stellar Populations
Young-Wook Lee, Soo-Chang Rey, Chang H. Ree +4
Our recent CCD photometry (Lee et al. 1999) has shown, for the first time, that omega Cen has several distinct stellar populations, which is reminiscent of the Sagittarius dwarf ga…
Wide-field High-precision CCD Photometry of omega Centauri and Its RR Lyrae Stars
Soo-Chang Rey, Jong-Myung Joo, Young-Jong Sohn +3
We present wide-field and high-precision BV and Ca & Stromgren by photometry of omega Centauri and its RR Lyrae stars, which represents one of the most extensive photometric survey…
Horizontal-Branch Morphology as an Age Indicator
Young-Wook Lee, Suk-Jin Yoon, Soo-Chang Rey +1
We present our recent revision of model constructions for the horizontal-branch (HB) morphology of globular clusters, which suggests the HB morphology is more sensitive to age comp…