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arXiv · astro-ph/0510802

Discovery of Remote Star Clusters in the Halo of the Irregular Galaxy NGC 6822

Narae Hwang·Myung Gyoon Lee·Jong Chul Lee·Won-Kee Park·Hong Soo Park·Jang-Hyun Park·Sangmo Tony Sohn·Sang-Gak Lee·Hyung Mok Lee·Mun-Suk Chun·Young-Wook Lee·Young-Jong Sohn·In-Soo Yuk·Sang Chul Kim·Ho-Il Kim·Wonyong Han
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Abstract

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 MegaPrime at the CFHT, covering a total field of 2 deg x 2 deg. The most remote cluster is found to be located as far as 79 arcmin away from the center of NGC 6822. This distance is several times larger than the size of the region in NGC 6822 where star clusters were previously found. Morphological structures of the clusters and color-magnitude diagrams of the resolved stars in the clusters show that at least two of these clusters are proabably old globular clusters.

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Narae Hwang, Myung Gyoon Lee, Jong Chul Lee, Won-Kee Park, Hong Soo Park, Jang-Hyun Park, Sangmo Tony Sohn, Sang-Gak Lee, Hyung Mok Lee, Mun-Suk Chun, Young-Wook Lee, Young-Jong Sohn, In-Soo Yuk, Sang Chul Kim, Ho-Il Kim, Wonyong Han. 2005-10-28. Discovery of Remote Star Clusters in the Halo of the Irregular Galaxy NGC 6822. https://doi.org/10.1017/s1743921305003856

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