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5. Partitioning the Galactic halo with Gaussian Mixture Models

Partitioning the Galactic halo with Gaussian Mixture Models

来源 :天文和天体物理学研究:英文版 | 被引量 : 0次 | 上传用户：allench9484

【摘 要】

：

The Galactic halo is supposed to form from merging with nearby dwarf galaxies.In order to probe different components of the Galactic halo,we have applied the Ga

【作 者】

：

Xi-Long Liang Yu-Qin Chen Jing-Kun Zhao Gang Zhao 

【机 构】

：

SchoolofAstronomyandSpaceScience,CASKeyLaboratoryofOpticalAstronomy

【出 处】

：

天文和天体物理学研究:英文版

【发表日期】

：

2021年5期

【关键词】

：

Galaxy:abundances Galaxy:kinematics Galaxy:structure 

【基金项目】

：

This study is supported by the National Natural Science Foundation of China(Grant Nos.11988101,11625313,11973048,11927804 and 11890694),the National Key R&D Program of China(Grant No.2019YFA0405502),t

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The Galactic halo is supposed to form from merging with nearby dwarf galaxies.In order to probe different components of the Galactic halo,we have applied the Gaussian Mixture Models method to a selected sample of metal poor stars with[Fe/H]<−0.7 dex in

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