当前位置: X-MOL 学术Astrophys. Bull. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Globular Clusters Lost by the Sagittarius Dwarf Spheroidal Galaxy
Astrophysical Bulletin ( IF 1.2 ) Pub Date : 2021-01-14 , DOI: 10.1134/s1990341320040021
N. R. Arakelyan , S. V. Pilipenko , M. E. Sharina

Abstract—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 (VGSR), 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.



中文翻译:

射手座矮球状星系丢失的球状星团

摘要—在这项工作中,通过分析空间位置,相对于银河静止标准(V GSR)的径向速度,适当运动和“年龄”比率,对属于射手座(Sgr)潮汐流的球状星团进行了搜索“金属性”([Fe / H])用于球状星团和潮汐流中的恒星。结果,获得了三类球状星团:A-最肯定的是在流中:Terzan 8,Whiting 1,Arp 2,NGC 6715,Terzan 7,Pal 12;B-运动异常值:Pal 5,NGC 5904,NGC 5024,NGC 5053,NGC 5272,NGC 288;C级最低候选人:NGC 6864,NGC 5466,NGC 5897,NGC 7492,NGC 4147。

更新日期:2021-01-14
down
wechat
bug