YNAO OpenIR  > 双星与变星研究组
V606 Cen: A Newly Formed Massive Contact Binary in a Hierarchical Triple System
Li FX(李福兴)1,2,3; Liao WP(廖文萍)1,3; Qian SB(钱声帮)1,2,3; Lajús, E. Fernández4,5; Zhang JJ(张居甲)1,3; Zhao EG(赵二刚)1,3
发表期刊ASTROPHYSICAL JOURNAL
2022
卷号924期号:1
DOI10.3847/1538-4357/ac3425
产权排序第1完成单位
收录类别SCI
摘要

V606 Centauri (V606 Cen) is an early B-type close binary with an orbital period of 1.4950935 days, and its complete light curves are very difficult to observe on the ground. By analyzing the continuous light curve obtained by TESS, we found that it is a marginal contact binary with a very low fill-out factor of about 2%. The O - C diagram of V606 Cen is constructed for the first time based on 118.8 yr of eclipse times. The O - C diagram has been found to show a downward parabolic change together with a cyclic oscillation with a semiamplitude of 0.0545 days and a period of 88.3 yr. The downward parabolic variation reveals a linear period decrease at a rate of dP/dt = -2.08 x 10(-7) days yr(-1) that can be explained by the mass transfer from the more massive component to the less massive one. Both the marginal contact configuration and the continuous period decrease suggest that V606 Cen is a newly formed contact binary via Case A mass transfer. The cyclic change in the O - C diagram can be explained by the light-travel time effect via the presence of a third body. The lowest mass of the tertiary companion is determined to be M (3) = 4.51 (+/- 0.43) M (circle dot) and the tertiary is orbiting around the central eclipsing binary in a nearly circular orbit (e = 0.33). All of the results indicate that V606 Cen is a newly formed massive contact binary in a hierarchical triple system.

资助项目Chinese Natural Science FoundationNational Natural Science Foundation of China (NSFC)[11933008] ; Chinese Natural Science FoundationNational Natural Science Foundation of China (NSFC)[11873017] ; Chinese Natural Science FoundationNational Natural Science Foundation of China (NSFC)[11903076] ; Yunnan Natural Science FoundationNatural Science Foundation of Yunnan Province[202001AT070051] ; Science popularization department of the Guizhou Association for Science and Technology ; Chinese Research Entity of Astronomical Technology and Education (CREATE) ; NASA's Science Mission Directorate
项目资助者Chinese Natural Science FoundationNational Natural Science Foundation of China (NSFC)[11933008, 11873017, 11903076] ; Yunnan Natural Science FoundationNatural Science Foundation of Yunnan Province[202001AT070051] ; Science popularization department of the Guizhou Association for Science and Technology ; Chinese Research Entity of Astronomical Technology and Education (CREATE) ; NASA's Science Mission Directorate
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星形成与演化
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP Publishing Ltd
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000740828300001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CLOSE-BINARY ; ECLIPSING BINARIES ; SHORTEST PERIOD ; VARIABLE-STARS ; V382 CYG ; CASE-A ; EVOLUTION ; PHOTOMETRY ; 1ST
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/24783
专题双星与变星研究组
南方基地
中国科学院天体结构与演化重点实验室
通讯作者Li FX(李福兴)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, People's Republic of China; lfx@ynao.ac.cn;
2.University of Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, People's Republic of China;
3.Key Laboratory of the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, People's Republic of China;
4.Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Buenos Aires, Argentina;
5.Instituto de Astrofísica de La Plata (CCT La Plata—CONICET/UNLP), 1900 La Plata, Argentina
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Li FX,Liao WP,Qian SB,et al. V606 Cen: A Newly Formed Massive Contact Binary in a Hierarchical Triple System[J]. ASTROPHYSICAL JOURNAL,2022,924(1).
APA Li FX,Liao WP,Qian SB,Lajús, E. Fernández,Zhang JJ,&Zhao EG.(2022).V606 Cen: A Newly Formed Massive Contact Binary in a Hierarchical Triple System.ASTROPHYSICAL JOURNAL,924(1).
MLA Li FX,et al."V606 Cen: A Newly Formed Massive Contact Binary in a Hierarchical Triple System".ASTROPHYSICAL JOURNAL 924.1(2022).
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