V Pup: A Hierarchical Massive Quadruple System
文献类型：期刊论文
| 作者 | Li, Fu-Xing1; Qian, Sheng-Bang1; Lajus, Eduardo Fernandez2,3; Li LJ(李临甲); Zhao EG(赵二刚); Zhu LY(朱俐颖); Jiao CL(焦承亮); Sun, Qi-Bin1; Lin, Wen-Xu1; Liao WP(廖文萍) |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-04-20 |
| 卷号 | 1001期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae4de8 |
| 产权排序 | 第4完成单位 |
| 文献子类 | Article |
| 英文摘要 | The formation and structural configuration of V Pup have not yet been fully understood. Here we report the detection that V Pup is a massive hierarchical quadruple system. Through long-term photometric monitoring and a comprehensive analysis of multiple survey datasets, we have constructed an updated O - C curve showing two significant periodic variations. These cyclic modulations strongly suggest the presence of two additional stellar companions orbiting the central binary. Both the tertiary and quaternary components have B-type spectral classifications and are located at separations that are unresolved by Gaia. These findings indicate that V Pup is a massive hierarchical quadruple system. The mass ratios among the four components are approximately 4:2:2:1, corresponding to the primary, secondary, tertiary, and quaternary stars, respectively. The tertiary and quaternary components are approximately 1:2 apart from the central binary, and their orbital periods around the binary are approximately 1:3. It is likely that this system originated through disk fragmentation. This discovery suggests that V Pup may be an exceptional test bed. It could shed further light on the formation of massive multiple-star systems. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | VARIABLE-STARS ; CLOSE BINARIES ; EVOLUTION |
| 资助项目 | Chinese Natural Science Foundation[12303040]; Chinese Natural Science Foundation[12503040]; Basic research project of Yunnan Province[202401AT070143]; Basic research project of Yunnan Province[202501AS070055]; Postdoctoral Fellowship Program of CPSF[GZC20252095]; China Postdoctoral Science Foundation[2025M773194]; Yunnan Revitalization Talent Support Program |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001741266900001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Chinese Natural Science Foundation[12303040, 12503040] ; Basic research project of Yunnan Province[202401AT070143, 202501AS070055] ; Postdoctoral Fellowship Program of CPSF[GZC20252095] ; China Postdoctoral Science Foundation[2025M773194] ; Yunnan Revitalization Talent Support Program |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/29176]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 通讯作者 | Qian, Sheng-Bang |
| 作者单位 | 1.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming 650091, People’s Republic of China; qiansb@ynu.edu.cn; 2.Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Buenos Aires, Argentina; Instituto de Astrofísica de La Plata (CCT La Plata - CONICET/UNLP), 1900 La Plata, Argentina; 3.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Li, Fu-Xing,Qian, Sheng-Bang,Lajus, Eduardo Fernandez,et al. V Pup: A Hierarchical Massive Quadruple System[J]. ASTROPHYSICAL JOURNAL,2026,1001(2). |
| APA | Li, Fu-Xing.,Qian, Sheng-Bang.,Lajus, Eduardo Fernandez.,李临甲.,赵二刚.,...&李敏榆.(2026).V Pup: A Hierarchical Massive Quadruple System.ASTROPHYSICAL JOURNAL,1001(2). |
| MLA | Li, Fu-Xing,et al."V Pup: A Hierarchical Massive Quadruple System".ASTROPHYSICAL JOURNAL 1001.2(2026). |
入库方式： OAI收割
来源：云南天文台
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