The Dichotomy of the Mass-radius Relation and the Number of Globular Clusters

被引：1

作者：

Abdullah, Ahmed H. ^{[1
]}

Kroupa, Pavel ^{[2
,3
,4
]}

机构：

[1] Univ Baghdad, Dept Astron, Coll Sci, Baghdad 10071, Iraq

[2] Univ Bonn, Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany

[3] Univ Bonn, Helmholtz Inst Strahlenund Kernphys HISKP, Nussallee 14-16, D-53115 Bonn, Germany

[4] Charles Univ Prague, Fac Math & Phys, Astron Inst, V Holesovickach 2, CZ-18000 Prague, Czech Republic

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2021年 / 47卷 / 03期

关键词：

globular cluster; number of globular clusters-galaxies; evolution; ELLIPTIC GALAXIES; STAR-CLUSTERS; BLACK-HOLES; DWARF; SYSTEMS; DETERMINES; FREQUENCY; EVOLUTION; EROSION;

D O I：

10.1134/S1063773721030014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Globular clusters (GCs) are among the oldest stellar systems in the early universe. We present galaxies formed with two different stellar populations, which depend on the relation between mass and radius. The primordial values of the number of globular clusters can be distinctly separated into two groups of densities, and thus are dependent on galaxy mass. Evidence that dE and E galaxies may have different origins has been found, the former having formed a smaller number of GCs per galaxy, which is consistent with downsizing.

引用

页码：170 / 174

页数：5

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