The Formation of Globular Clusters in Merging and Interacting Galaxies

The Formation of Globular Clusters in Merging and Interacting Galaxies
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DOI:
10.1086/170850
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发表时间:
1992
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
K. Ashman;S. Zepf
K. Ashman;S. Zepf
中科院分区:
其他
文献类型:
--
作者:
K. Ashman;S. Zepf

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我们认为,至少有一些球状星团是在星系相互作用或合并过程中形成的。这些事件可以解释银河系中的星系盘人口,麦哲伦云中的年轻球状星团,相对于相同光度的螺旋星系,椭圆星系周围的星系团过多,以及星系团中心某些星系周围巨大的球状星团系统。我们表明,如果所有的原旋星系都包含具有相似质量谱的亚星系云,那么围绕着螺旋星系的球状星团的特定频率将是恒定的
We suggest that at least some globular clusters are formed during the interaction or merger of galaxies. Such events could explain the disk population of clusters in the Galaxy, the young globulars in the Magellanic Clouds, the excess of clusters around ellipticals relative to spirals of the same luminosity and the anomalously large globular cluster systems around some galaxies in the center of galaxy clusters. We show that if all protospirals contain subgalactic clouds with a similar mass spectrum, the specific frequency of globular clusters around spirals will be constant