천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제37권1호
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- Pages.61.1-61.1
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- 2012
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- 1226-2692(pISSN)
Optical and Near-Infrared Color Distributions of the NGC 4874 Globular Cluster System
- Cho, Hye-Jeon (Department of Astronomy and Center for Galaxy Evolution Research, Yonsei University) ;
- Blakeslee, John P. (Herzberg Institute of Astrophysics, National Research Council of Canada) ;
- Lee, Young-Wook (Department of Astronomy and Center for Galaxy Evolution Research, Yonsei University)
- 발행 : 2012.04.03
초록
We examine both optical and optical/near-infrared (NIR) color distributions of the globular cluster (GC) system in the core of the Coma cluster of galaxies (Abell 1656), centered on the giant elliptical galaxy NGC 4874, to study how non-linearities in the color-metallicity relations of GC systems in large elliptical galaxies are linked to bimodal optical color distributions. Since optical-NIR color distributions of extragalactic GC systems reflect the underlying features of the metallicity distributions, we also present the color-color relation for this GC system. In order to do this, we combine F160W (
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