中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 云南天文台
  3. 中国科学院云南天文台
  4. 大样本恒星演化研究组
The Magnified Waltz: Simulating Light Curves of Binary Stars Passing Through Microcaustics in Strong Lensing Galaxy Clusters

文献类型：期刊论文

作者Zheng, Wenwen7; Fu, Xiaoting7; Chen, Yang6; Chen XF(陈雪飞)4,5; Guo YJ(郭彦君)5; Chen, Xuechun2,3; Shan, Huanyuan1; Li, Guoliang7
刊名ASTROPHYSICAL JOURNAL
出版日期2025-07-01
卷号987期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/add72a
产权排序第3完成单位
文献子类Article
英文摘要Individual stars located near the caustics of galaxy clusters can undergo extreme magnification when crossing microcaustics, rendering them observable even at cosmological distances. Though most massive stars are likely to reside in binary systems rather than as single star, the influence of a binary star system on magnification events is severely underexplored. In this work, we simulate the light curves produced by detached binary stars crossing microcaustics, aiming to characterize their unique observational signatures. Using high-resolution magnification maps generated by the GPU-PMO-CAUSTIC algorithm and PARSEC stellar models with red-shifted magnitude, we examined the impact of binary star parameters and crossing geometries on microlensing magnification patterns. Our simulations reveal that binary stars produce diverse light-curve features, including overlapping peaks, plateau-like structures, and time-variable color-magnitude differences. These features, particularly the distinct temporal variations in spectral energy distributions, offer diagnostic tools for distinguishing binary systems from single stars. We further demonstrate the potential of multiband photometry using the Chinese Space Station Telescope's Multi-Channel Imager to capture these variations. Our findings provide theoretical support to identify binary systems in future caustic-crossing events, enabling more accurate characterization of high-redshift stellar populations.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词DARK-MATTER ; MASSIVE STARS ; LENSED STAR ; BLUE SUPERGIANT ; MAGNIFICATION ; FLASHLIGHTS ; EVOLUTION ; IMAGES ; TRACKS
资助项目National Natural Science Foundation of China (NSFC)[12403006]; National Natural Science Foundation of China (NSFC)[12333001]; National Natural Science Foundation of China (NSFC)[12203100]; National Natural Science Foundation of China (NSFC)[12288102]; National Natural Science Foundation of China (NSFC)[12125303]; National Natural Science Foundation of China (NSFC)[12003001]; Jiangsu Province Distinguished Postdoctoral Fellowship Program[202407017555]; Natural Science Research Project of Anhui Educational Committee[2024AH050049]; Anhui Project[Z010118169]; China MannedSpace Project[CMS-CSST-2025-A20]; China MannedSpace Project[CMS-CSST-2025-A14]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001521020900001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China (NSFC)[12403006, 12333001, 12203100, 12288102, 12125303, 12003001] ; Jiangsu Province Distinguished Postdoctoral Fellowship Program[202407017555] ; Natural Science Research Project of Anhui Educational Committee[2024AH050049] ; Anhui Project[Z010118169] ; China MannedSpace Project[CMS-CSST-2025-A20, CMS-CSST-2025-A14]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28400]  
专题云南天文台_大样本恒星演化研究组
通讯作者Li, Guoliang
作者单位1.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, People’s Republic of China
2.School of Physics and Astronomy, Beijing Normal University, Beijing 100875, People’s Republic of China;
3.Institute for Frontier in Astronomy and Astrophysics, Beijing Normal University, Beijing, 102206, People’s Republic of China;
4.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China;
5.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, Yunnan, People’s Republic of China;
6.School of Physics and Optoelectronic Engineering, Anhui University, Hefei, 230601, People’s Republic of China;
7.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, Jiangsu, 210023, People’s Republic of China; guoliang@pmo.ac.cn;
推荐引用方式
GB/T 7714		 Zheng, Wenwen,Fu, Xiaoting,Chen, Yang,et al. The Magnified Waltz: Simulating Light Curves of Binary Stars Passing Through Microcaustics in Strong Lensing Galaxy Clusters[J]. ASTROPHYSICAL JOURNAL,2025,987(1).
APA Zheng, Wenwen.,Fu, Xiaoting.,Chen, Yang.,陈雪飞.,郭彦君.,...&Li, Guoliang.(2025).The Magnified Waltz: Simulating Light Curves of Binary Stars Passing Through Microcaustics in Strong Lensing Galaxy Clusters.ASTROPHYSICAL JOURNAL,987(1).
MLA Zheng, Wenwen,et al."The Magnified Waltz: Simulating Light Curves of Binary Stars Passing Through Microcaustics in Strong Lensing Galaxy Clusters".ASTROPHYSICAL JOURNAL 987.1(2025).

入库方式： OAI收割

来源：云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。