YOUNG GLOBULAR-CLUSTERS IN THE MILKY-WAY GALAXY

被引：66

作者：

LIN, DNC ^{[1
]}

RICHER, HB ^{[1
]}

机构：

[1] UNIV CAMBRIDGE OBSERV,INST ASTRON,CAMBRIDGE CB3 0HA,ENGLAND

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 388卷 / 02期

关键词：

GALAXY; FORMATION; HALO; GLOBULAR CLUSTERS; GENERAL; INDIVIDUAL; (RUPRECHT-106; PAL-12);

D O I：

10.1086/186329

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Ruprecht 106 and Pal 12 are the two known globular clusters in the Milky Way that are unequivocally younger than other clusters of similar metallicity. The Galactic coordinates of Ruprecht 106 place it near to the Magellanic Stream in projection, suggesting a tidal capture from the Magellanic Clouds. We demonstrate that a family of orbits for both clusters can be constructed that are consistent with this capture hypothesis and that these then lead to a prediction of 3 milliarcseconds per year for the proper motions of both Ruprecht 106 and Pal 12.

引用

页码：L57 / L60

页数：4

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