Ultra-compact dwarf galaxies in galaxy clusters

被引：51

作者：

Drinkwater, MJ ^{[1
]}

Gregg, MD

Couch, WJ

Ferguson, HC

Hilker, M

Jones, JB

Karick, A

Phillipps, S

机构：

[1] Univ Queensland, Dept Phys, Brisbane, Qld 4072, Australia

[2] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[3] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA

[4] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

[5] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[6] Univ Bonn, Sternwarte, D-53121 Bonn, Germany

[7] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[8] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

[9] Univ Bristol, Dept Phys, Astrophys Grp, Bristol BS8 1TL, Avon, England

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | 2004年 / 21卷 / 04期

关键词：

globular clusters : general; galaxies : dwarf; galaxies : formation; galaxies : clusters : general;

D O I：

10.1071/AS04048

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We review the evidence that the ultra-compact dwarf (UCD) galaxies we recently discovered in the Fornax Cluster form a new, previously unknown class of galaxies and we discuss possible scenarios for their formation. We then present recent results that UCDs are also present in the Virgo Cluster, and that there is a much larger than expected population of fainter UCDs in the Fornax Cluster. The size and properties of this population may lead us to revise our original 'galaxy threshing' hypothesis for the formation of UCDs.

引用

页码：375 / 378

页数：4

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