Detection of a Large-Scale Structure of Intracluster Globular Clusters in the Virgo Cluster

被引：60
|
作者：
Lee, Myung Gyoon [1 ]
Park, Hong Soo [1 ]
Hwang, Ho Seong [1 ,2 ]
机构：
[1] Seoul Natl Univ, Dept Phys & Astron, Astron Program, Seoul 151742, South Korea
[2] CEA Saclay, Serv Astrophys, F-91191 Gif Sur Yvette, France
来源：
SCIENCE | 2010年 / 328卷 / 5976期
关键词：
DIGITAL SKY SURVEY; DIFFUSE LIGHT; GALAXIES; SYSTEM; M87; DISTRIBUTIONS; LUMINOSITY; KINEMATICS; HALO;
D O I：
10.1126/science.1186496
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Globular clusters are usually found in galaxies, and they are excellent tracers of dark matter. Long ago it was suggested that intracluster globular clusters (IGCs) may exist that are bound to a galaxy cluster rather than to any single galaxy. Here we present a map showing the large-scale distribution of globular clusters over the entire Virgo cluster. It shows that IGCs are found out to 5 million light years from the Virgo center and that they are concentrated in several substructures that are much larger than galaxies. These objects might have been mostly stripped off from low-mass dwarf galaxies.
引用
收藏
页码：334 / 336
页数：3
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