The Bulletin of The Korean Astronomical Society (천문학회보)

The Korean Astronomical Society (한국천문학회)
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Spectroscopy of Globular Clusters in the Core of the Virgo Cluster

  • Ko, Youkyung (Department of Physics and Astronomy, Seoul National University) ;
  • Hwang, Ho Seong (School of Physics, Korea Institute for Advanced Study) ;
  • Lee, Myung Gyoon (Department of Physics and Astronomy, Seoul National University) ;
  • Sohn, Jubee (Department of Physics and Astronomy, Seoul National University) ;
  • Lim, Sungsoon (Department of Physics and Astronomy, Seoul National University) ;
  • Park, Hong Soo (Korea Astronomy & Space Science Institute)
  • Published : 2014.10.13
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Abstract

The Virgo cluster, the nearest galaxy cluster, is dynamically young, hosting numerous globular clusters in galaxies as well as intracluster globular clusters (IGCs). We obtained spectra of globular cluster candidates in the core region of the Virgo cluster using Hectospec at MMT to study the kinematics of the globular clusters. The targets are located at a large range (50 kpc < d < 500 kpc) from M87, the most massive galaxy in Virgo. We distinguish the genuine globular cluster population in the targets by inspecting their spectral features and radial velocities. As a result, a significant number of IGCs are found. We present preliminary results of the kinematics of globular clusters in the Virgo core region.

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