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
收藏
页码：352 / 361
页数：10
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