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Multiple Populations of the Large Magellanic Cloud Globular Cluster NGC 2257: No Major Environmental Effect on the Formation of Multiple Populations of the Old Globular Clusters in Large Magellanic Cloud
Jae-Woo Lee, Tae-Hyeong Kim, Hak-Sub Kim +3
How the environment of the host galaxy affects the formation of multiple populations (MPs) in globular clusters (GCs) is one of the outstanding questions in the near-field cosmolog…
A Comparative Study Between M30 and M92 : M92 Is A Merger Remnant With A Large Helium Enhancement
Jae-Woo Lee
We perform a comparative study of the ex--situ second--parameter pair globular clusters (GCs) M30 and M92, having similar metallicities but different horizontal branch morphologies…
Carbon Abundance of Globular Cluster M22 (NGC 6656) and the Surface Carbon Depletion Rates of the Milky Way Globular Clusters
Jae-Woo Lee
It is well known that metal-poor red giant branch (RGB) stars show variations in some elemental abundances, including carbon, due to the internal mixing accompanied by their own in…
M92 (NGC~6341) Is a Metal-Complex Globular Cluster with an Atypical Primordial Population
Jae-Woo Lee
We present a multiple stellar population study of the metal-poor globular cluster (GC) M92 (NGC 6341), which is long known for the substantial metallicity dispersion, using our own…
Isochrone fitting of Galactic globular clusters -- IV. NGC6362 and NGC6723
George A. Gontcharov, Maxim Yu. Khovritchev, Aleksandr V. Mosenkov +10
We present new isochrone fits to the colour-magnitude diagrams of the Galactic globular clusters NGC\,6362 and NGC\,6723. We utilize 22 and 26 photometric filters for NGC\,6362 and…
Multiple Stellar Populations of Globular Clusters From Homogeneous Ca-CN-CH-NH Photometry. VII. Metal-Poor Populations in 47 Tucanae (NGC 104)
Jae-Woo Lee
We present new large field-of-view (1°1°) Ca-CN photometry of the prototypical metal-rich globular cluster 47 Tucanae (NGC 104). Our results are the following. (1) Th…