The Spectroscopic and Photometric Study of a Star Cluster Sample in Andromeda Halo
Year: 2026
Type: article
Abstract: Halo star clusters serve as vital tracers for the formation and evolution of the Andromeda galaxy. In this work, we present physical parameters for 29 M31 halo star clusters, derived from a combination of spectroscopic and photometric data. Low-resolution spectra were acquired using the Beijing Faint Object Spectrograph and Camera spectrograph on the National Astronomical Observatories, Chinese Academy of Sciences Xinglong 2.16 m telescope. For the photometric analysis, we utilized u SC and v SAGE bands from the SAGE survey, complemented by archival data from Galaxy Evolution Explorer (near-ultraviolet and far-ultraviolet), PAN-STARRS ( grizy ), and the Two Micron All Sky Survey ( JHK ). Ages and metallicities were determined via ULySS (Vazdekis et al. and pegase-hr) simple stellar population model and the G. Bruzual & S. Charlot stellar population synthesis models. The derived parameters show good agreement with literature values. Notably, for three of these clusters, this study represents the first combined photometric and spectroscopic analysis.
Source: The Astronomical Journal
Authors: Hongrui 弘睿 Gu 顾, Zhou 舟 Fan 范, Bingqiu 丙秋 Chen 陈, Xiaoying 晓莹 Pang 庞, Juanjuan 娟娟 Ren 任, Ruizheng 睿铮 Jiang 江, Song 松 Wang 王, Kefeng 克峰 Tan 谈, Nan 楠 Song 宋, Chun 春 Li 李, Jie 捷 Zheng 郑, Gang 刚 Zhao 赵, Wei 炜 Wang 王, Yuqin 玉琴 Chen 陈, Jingkun 景昆 Zhao 赵, Haining 海宁 Li 李, Yihan 轶晗 Song 宋, Haibo 海波 Yuan 苑, Ali 阿理 Luo 罗, Yujuan 玉娟 Liu 刘, Yaqian 雅倩 Wu 武
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,499
OpenAlex ID: W7140182191