Globular Clusters Lost by the Sagittarius Dwarf Spheroidal Galaxy

被引：7
|
作者：
Arakelyan, N. R. [1 ]
Pilipenko, S., V [1 ]
Sharina, M. E. [2 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 117997, Russia
[2] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia
来源：
ASTROPHYSICAL BULLETIN | 2020年 / 75卷 / 04期
关键词：
globular clusters: general; Galaxy: structure; galaxies: dwarf; SKY SURVEY VIEW; HIGH-RESOLUTION SPECTROSCOPY; MILKY-WAY; CHEMICAL-COMPOSITION; PROPER MOTIONS; GIANT STARS; ELEMENTAL ABUNDANCE; STELLAR POPULATION; BRANCH STARS; TIDAL DEBRIS;
D O I：
10.1134/S1990341320040021
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this work a search was carried out for globular clusters belonging to the Sagittarius (Sgr) tidal stream using the analysis of spatial positions, radial velocities relative to the Galactic Standard of Rest (V-GSR), proper motions and ratio of "age-metallicity" ([Fe/H]) for globular clusters and for stars in the tidal stream. As a result, three categories of globular clusters were obtained: A-most certainly in the stream: Terzan 8, Whiting 1, Arp 2, NGC 6715, Terzan 7, Pal 12; B-kinematic outliers: Pal 5, NGC 5904, NGC 5024, NGC 5053, NGC 5272, NGC 288; C-lowest rank candidates: NGC 6864, NGC 5466, NGC 5897, NGC 7492, NGC 4147.
引用
收藏
页码：394 / 406
页数：13
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