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6 papers · 2 filters
BOAO Photometric Survey of Galactic Open Clusters. III. Czernik 24 and Czernik 27
Sang Chul Kim, Hong Soo Park, Sangmo Tony Sohn +9
We present BV CCD photometry for the open clusters Czernik 24 and Czernik 27. These clusters have never been studied before, and we provide, for the first time, the cluster paramet…
Low Mass X-ray Binaries in 6 Elliptical Galaxies: Connection to Globular Clusters
Eunhyeuk Kim, Dong-Woo Kim, Giuseppina Fabbiano +4
We present a systematic study of the low mass X-ray binary (LMXB) populations of 6 elliptical galaxies. We utilize Chandra archival data to identify 665 X-ray point sources and HST…
Discovery of Remote Star Clusters in the Halo of the Irregular Galaxy NGC 6822
Narae Hwang, Myung Gyoon Lee, Jong Chul Lee +13
We report the discovery of three new star clusters in the halo of the Local Group dwarf irregular galaxy NGC 6822. These clusters were found in the deep images taken with the MegaP…
Giant Halos in Dwarf Irregular Galaxies vs. Dwarf Elliptical Galaxies
Myung Gyoon Lee, Narae Hwang
We present a discovery of a giant stellar halo in NGC 6822, a dwarf irregular galaxy in the Local Group. This halo is mostly made of old red giants, showing striking features: 1) i…
Properties of Resolved Star Clusters in M51
Myung Gyoon Lee, Rupali Chandar, Bradley C. Whitmore
We present a study of compact star clusters in the nearby pair of interacting galaxies NGC 5194/95 (M51), based on multifilter Hubble Space Telescope WFPC2 archival images. We have…
Theoretical Isochrones with Extinction in the K Band
Sungsoo S. Kim, Donald F. Figer, Myung Gyoon Lee +1
We calculate theoretical isochrones in a consistent way for five filters (K, K', Ks, F205W, and F222M) in the atmospheric window between 1.9 and 2.5 micron using the Padova stellar…