The orbits of 48 globular clusters in a Milky Way-like barred galaxy

被引：64

作者：

Allen, Christine

Moreno, Edmundo

Pichardo, Barbara

机构：

[1] Univ Nacl Autonoma Mexico, Inst Astron, Mexico City 04510, DF, Mexico

[2] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 652卷 / 02期

关键词：

Galaxy : halo; Galaxy : kinematics and dynamics; globular clusters : general;

D O I：

10.1086/508676

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The effect of a barred potential (such as the one of the Milky Way) on the Galactic orbits of 48 globular clusters for which absolute proper motions are known is studied. The orbital characteristics are compared with those obtained for the case of an axisymmetric Galactic potential. Tidal radii are computed and discussed for both the better known axisymmetric case and that including a bar. The destruction rates due to bulge and disk shocking are calculated and compared in both Galactic potentials.

引用

页码：1150 / 1169

页数：20

共 42 条

[1] ON THE EVOLUTION OF GLOBULAR-CLUSTER SYSTEMS .1. PRESENT CHARACTERISTICS AND RATE OF DESTRUCTION IN OUR GALAXY [J].