A Study of Ten Early-type Contact Binary Stars in the Small Magellanic Cloud
文献类型:期刊论文
作者 | Wu CQ(吴楚齐)3,4,5; Li FX(李福兴)3,5; Qian SB(钱声帮)3,4,5; Zhang J(张嘉)3,5; Sarotsakulchai, Nopphadon2; Zubairi, Ahmed Waqas4,5; AZIZBEK MATEKOV1,4,5 |
刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC |
出版日期 | 2023-09-01 |
卷号 | 135期号:1051 |
ISSN号 | 0004-6280 |
DOI | 10.1088/1538-3873/acf8f9 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | To study early-type binary systems in different evolutionary stages or environments, the Small Magellanic Cloud (SMC) is an ideal laboratory due to its low metallicity compared to that of the Milky Way. We conduct a study on the period changes of the close binary systems with B-type spectral classifications in the SMC using OGLE collections. Ten B-type binaries that show no significant periodic variations based on the current observational data were analyzed. Through O - C analysis, four of the ten early-type binaries show a long-term period decrease, one shows a long-term period increase, and the other five systems are ambiguous due to the limitations of the observational data. Among the period-decreasing systems, two may be mainly caused by mass transfer, while the rest may be caused by angular momentum loss. The Wilson-Devinney code (W-D method) is used to analyze their I-band photometric light curves. According to the W-D results, five early-type binaries are in the deep contact state, three are in the shallow contact state, while two are in the medium contact state, and the temperature ratios of these early-type binaries are all close to unity. The five deep contact binaries are highly unstable systems and therefore serve as important objects for the study of binary mergers. Finally, a discussion on the evolution of early-type binary stars is conducted by combining the analyses of the light curves and the periodic changes of ten early-type binaries, that implies that the majority of early-type binaries in the SMC may form contact binaries from a phase of rapid mass transfer. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | LIMB-DARKENING COEFFICIENTS ; LIGHT CURVES ; SHORTEST PERIOD ; MASSIVE BINARY ; CLOSE-BINARY ; EVOLUTION ; SYSTEM ; TWIN ; GRIDS ; MON |
资助项目 | National Key R&D Program of China[2022YFE0116800] ; Chinese Natural Science Foundation[12303040] ; Chinese Natural Science Foundation[11933008] ; Chinese Natural Science Foundation[11873017] ; basic research project of Yunnan Province[202001AT070091] ; basic research project of Yunnan Province[202201AT070180] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:001070044700001 |
资助机构 | National Key R&D Program of China[2022YFE0116800] ; Chinese Natural Science Foundation[12303040, 11933008, 11873017] ; basic research project of Yunnan Province[202001AT070091, 202201AT070180] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26324] |
专题 | 云南天文台_双星与变星研究组 云南天文台_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.Ulugh Beg Astronomical Institute of the Uzbekistan Academy of Science, 33 Astronomicheskaya str, Tashkent 100052, Uzbekistan 2.National Astronomical Research Institute of Thailand, 260 Moo 4, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand; 3.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, 650216 Kunming, People's Republic of China; 4.University of Chinese Academy of Sciences, No.1 Yanqihu East Rd, Huairou District, Beijing, 101408, People's Republic of China; 5.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, People's Republic of China; lfx@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Wu CQ,Li FX,Qian SB,et al. A Study of Ten Early-type Contact Binary Stars in the Small Magellanic Cloud[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2023,135(1051). |
APA | Wu CQ.,Li FX.,Qian SB.,Zhang J.,Sarotsakulchai, Nopphadon.,...&AZIZBEK MATEKOV.(2023).A Study of Ten Early-type Contact Binary Stars in the Small Magellanic Cloud.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,135(1051). |
MLA | Wu CQ,et al."A Study of Ten Early-type Contact Binary Stars in the Small Magellanic Cloud".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 135.1051(2023). |
入库方式: OAI收割
来源:云南天文台
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