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The Spectroscopic and Photometric Study of a Star Cluster Sample in Andromeda Halo

  • Authors: Hongrui Gu, 弘睿 顾, Zhou Fan, 舟 范, Bingqiu Chen, 丙秋 陈, Xiaoying Pang, 晓莹 庞, Juanjuan Ren, 娟娟 任, Ruizheng Jiang, 睿铮 江, Song Wang, 松 王, Kefeng Tan, 克峰 谈, Nan Song, 楠 宋, Chun Li, 春 李, Jie Zheng, 捷 郑, Gang Zhao, 刚 赵, Wei Wang, 炜 王, Yuqin Chen, 玉琴 陈, Jingkun Zhao, 景昆 赵, Haining Li, 海宁 李, Yihan Song, 轶晗 宋, Haibo Yuan, 海波 苑, Ali Luo, 阿理 罗, Yujuan Liu, 玉娟 刘, Yaqian Wu, 雅倩 武

Hongrui Gu et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 11.

Spatial distribution of 29 sample clusters overlaid on the M31 stellar substructure map from A. D. Mackey et al. (2010; their Figure 3). Substructures are labeled as follows: Streams A—D; Giant Stream (G); NE structure (NE); NW Stream (NW); and SW Cloud (SW). The panels divide the sample by metallicity: metal-rich ([Fe/H] > −1.5, left) and metal-poor ([Fe/H] = −1.5, right). Symbol colors indicate age: red (<10 Gyr), green (10–15 Gyr), and blue (>15 Gyr). Labeled clusters are discussed in detail in the text.

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