Galactic Orbits of Globular Clusters in the Region of the Galactic Bulge

被引：13

作者：

Bobylev, V. V. ^{[1
]}

Bajkova, A. T. ^{[1
]}

机构：

[1] Russian Acad Sci, Cent Pulkovo Astron Observ, Pulkovskoe Shosse 65, St Petersburg 196140, Russia

来源：

ASTRONOMY REPORTS | 2017年 / 61卷 / 07期

关键词：

MILKY-WAY BULGE; SPACE VELOCITIES; DENSITY PROFILE; ROTATION CURVE; DARK HALO; MASS; KINEMATICS; CATALOG; GALAXY; BARS;

D O I：

10.1134/S1063772917070010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Galactic orbits have been constructed over long time intervals for ten globular clusters located near the Galactic center. A model with an axially symmetric gravitational potential for the Galaxy was initially applied, after which a non-axially symmetric potential corresponding to the central bar was added. Variations in the trajectories of all these globular clusters in the XY plane due to the influence of the bar were detected. These were greatest for the cluster Terzan 4 in the meridional (RZ) plane. The globular clusters Terzan 1, Terzan 2, Terzan 4, Terzan 9, NGC 6522, and NGC 6558 always remained within the Galactic bulge, no farther than 4 kpc from the Galactic center.

引用

页码：551 / 559

页数：9

共 50 条

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[J]. Astronomy Reports, 2017, 61 : 551 - 559
[2] Orbits of Selected Globular Clusters in the Galactic Bulge
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[4] Globular Clusters in the Galactic Bulge
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