Were the Large Magellanic Cloud globular clusters formed in a disk?

被引:9
|
作者
van den Bergh, S [1 ]
机构
[1] Natl Res Council Canada, Herzberg Inst Astrophys, Dominion Astrophys Observ, Victoria, BC V9E 2E7, Canada
来源
ASTRONOMICAL JOURNAL | 2004年 / 127卷 / 02期
关键词
galaxies : star clusters; Magellanic Clouds;
D O I
10.1086/381303
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The radial velocities of the 13 globular clusters in the Large Magellanic Cloud have a dispersion of 28 km s(-1) relative to the H I rotation curve of the LMC, compared with a dispersion of 30 km s(-1) with regard to the mean globular cluster velocity. This shows that, contrary to a suggestion made by Schommer et al. in 1992, one cannot yet rule out the possibility that the LMC globular clusters formed in a pressure-supported halo, rather than in a rotating disk. The globular clusters in the LMC may therefore, after all, exhibit a relationship between age and kinematics that is similar to that of the clusters in M33.
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页码:897 / 898
页数:2
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