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arXiv 2603.18151astro-ph.GA
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仙女座晕星团的光谱和光度学研究

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

CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences(中国科学院国家天文台光学天文重点实验室);School of Astronomy and Space Science, University of Chinese Academy of Sciences(中国科学院大学天文与空间科学学院);South-Western Institute For Astronomy Research, Yunnan University(云南大学西南天文研究所);Xi’an Jiaotong-Liverpool University(西交利物浦大学)
Hongrui Gu, Zhou Fan, Bingqiu Chen, Xiaoying Pang, Juanjuan Ren, Ruizheng Jiang, Song Wang, Kefeng Tan, Nan Song, Chun Li, Jie Zheng, Gang Zhao, Wei Wang, Yuqin… 展开作者

Hongrui Gu, Zhou Fan, Bingqiu Chen, Xiaoying Pang, Juanjuan Ren, Ruizheng Jiang, Song Wang, Kefeng Tan, Nan Song, Chun Li, Jie Zheng, Gang Zhao, Wei Wang, Yuqin Chen, Jingkun Zhao, Haining Li, Yihan Song, Haibo Yuan, Ali Luo, Yujuan Liu, Yaqian Wu

AI总结:

本文通过光谱和光度学数据研究29个仙女座晕星团,确定其物理参数,揭示其年龄和金属含量,为理解仙女座星系形成与演化提供新数据。

摘要:

晕星团是研究仙女座星系形成与演化的关键示踪物。本文通过光谱和光度学数据,确定了29个仙女座晕星团的物理参数。低分辨率光谱利用NAOC Xinglong 2.16米望远镜上的BFOSC光谱仪获取。光度学分析使用了SAGE调查的uSC和vSAGE带,结合GALEX(NUV, FUV)、PAN-STARRS(grizy)和2MASS(JHK)的存档数据。年龄和金属含量通过ULySS(Vazdekis等人和pegase-hr) SSP模型和Bruzual & Charlot(2003) (BC03)恒星群体合成模型确定。所得参数与文献值一致。值得注意的是,对于其中三个星团,本研究首次进行了光度学和光谱学的联合分析。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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