A Subaru/Suprime-Cam Wide-Field Survey of Globular Cluster Populations around M87

A Subaru/Suprime-Cam Wide-Field Survey of Globular Cluster Populations around M87
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DOI：
10.1111/j.1365-2966.2006.11059.x
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发表时间：
2006-09
期刊：
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通讯作者：
N. Tamura;R. Sharples;N. Arimoto;M. Onodera;K. Ohta;Yoshihiko Yamada University of Durham;Subaru Telescope-S
N. Tamura;R. Sharples;N. Arimoto;M. Onodera;K. Ohta;Yoshihiko Yamada University of Durham;Subaru Telescope-S
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文献类型：
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作者：
N. Tamura;R. Sharples;N. Arimoto;M. Onodera;K. Ohta;Yoshihiko Yamada University of Durham;Subaru Telescope-S

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We report a wide-field imaging survey of the globular cluster (GC) populations around M87 with Suprime-Cam on the 8.2 m Subaru telescope. By investigating the GC colour distributions and surface number densities as a function of distance from the host galaxy, we argue that the contribution of GCs associated with the Virgo cluster (i.e. intergalactic GCs) is insignificant around M87; most of the blue GCs around luminous ellipticals as well as the red GCs are presumably associated with the host galaxy.