The Spectroscopic and Photometric Study of a Star Cluster Sample in Andromeda Halo
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arXiv
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2026
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| author | Gu, Hongrui Fan, Zhou Chen, Bingqiu Pang, Xiaoying Ren, Juanjuan Jiang, Ruizheng Wang, Song Tan, Kefeng Song, Nan Li, Chun Zheng, Jie Zhao, Gang Wang, Wei Chen, Yuqin Zhao, Jingkun Li, Haining Song, Yihan Yuan, Haibo Luo, Ali Liu, Yujuan Wu, Yaqian |
| author_facet | Gu, Hongrui Fan, Zhou Chen, Bingqiu Pang, Xiaoying Ren, Juanjuan Jiang, Ruizheng Wang, Song Tan, Kefeng Song, Nan Li, Chun Zheng, Jie Zhao, Gang Wang, Wei Chen, Yuqin Zhao, Jingkun Li, Haining Song, Yihan Yuan, Haibo Luo, Ali Liu, Yujuan Wu, Yaqian |
| contents | 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 BFOSC spectrograph on the NAOC Xinglong 2.16-m telescope. For the photometric analysis, we utilized uSC and vSAGE bands from the SAGE survey, complemented by archival data from GALEX(NUV, FUV), PAN-STARRS(grizy) and the 2MASS(JHK). Ages and metallicities were determined via ULySS (Vazdekis et al. and pegase-hr) SSP model and the Bruzual & Charlot (2003) (BC03) 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_18151 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The Spectroscopic and Photometric Study of a Star Cluster Sample in Andromeda Halo Gu, Hongrui Fan, Zhou Chen, Bingqiu Pang, Xiaoying Ren, Juanjuan Jiang, Ruizheng Wang, Song Tan, Kefeng Song, Nan Li, Chun Zheng, Jie Zhao, Gang Wang, Wei Chen, Yuqin Zhao, Jingkun Li, Haining Song, Yihan Yuan, Haibo Luo, Ali Liu, Yujuan Wu, Yaqian Astrophysics of Galaxies 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 BFOSC spectrograph on the NAOC Xinglong 2.16-m telescope. For the photometric analysis, we utilized uSC and vSAGE bands from the SAGE survey, complemented by archival data from GALEX(NUV, FUV), PAN-STARRS(grizy) and the 2MASS(JHK). Ages and metallicities were determined via ULySS (Vazdekis et al. and pegase-hr) SSP model and the Bruzual & Charlot (2003) (BC03) 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. |
| title | The Spectroscopic and Photometric Study of a Star Cluster Sample in Andromeda Halo |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2603.18151 |