Multiplicity of main-sequence turn-offs in globular clusters

被引：1

作者：

Ryabova, M. V. ^{[1
]}

Shchekinov, Yu. A. ^{[1
,2
]}

机构：

[1] Rostov State Univ, Rostov Na Donu 344006, Russia

[2] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz, Karachayevo Che, Russia

来源：

ASTRONOMY REPORTS | 2008年 / 52卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/S1063772908050028

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present color-magnitude diagrams of globular clusters for models with self-enrichment and primordial enrichment. The models with self-enrichment turn out to have two or more main-sequence turn-off points in the color-magnitude diagram if the fraction of mass lost by the globular cluster as a result of supernova explosions does not exceed 95-97%. The models with primordial enrichment can have only one main-sequence turn-off point. We argue that the cluster omega Cen evolved according to a self-enrichment scenario.

引用

页码：352 / 361

页数：10

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