Red dwarf contact binary V0627 Hydrae
文献类型:期刊论文
作者 | Xu HS(徐虎山)1,2![]() ![]() ![]() |
刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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出版日期 | 2022-02-17 |
关键词 | binaries: close binaries: eclipsing stars: individual (V0627 Hydrae) star: late-type |
ISSN号 | 0004-6264 |
DOI | 10.1093/pasj/psab128 |
产权排序 | 第1完成单位 |
文献子类 | Article; Early Access |
英文摘要 | New complete light curves in B, V, R-C, and I-C bands for the short-period eclipsing binary V0627 Hya (period shorter than 0.22 d) are presented. From the longer wavelength to the shorter one, the amplitudes of the light variation become larger. The different height of the successive maxima in each band's light curve could be seen clearly. We analyzed those multi-wavelength light curves using the Wilson-Devinney code and derived the photometric solutions of V0627 Hya for the first time. It is found that V0627 Hya is a W-type shallow-contact binary. Combined with the GAIA parallax, the absolute parameters of this system are obtained: M-1 = 0.31 M-circle dot, M-2 = 0.64 M-circle dot, R-1 = 0.50 R-circle dot, R-2 = 0.69 R-circle dot, L-1 = 0.06 L-circle dot, L-2 = 0.08 L-circle dot. Thus, V0627 Hya is a new member of the red dwarf contact binary class. The asymmetry in the light curves could be explained by the spot model due to the magnetic activity of its late-type component. The amplitude differences in the different bands' light curves imply the existence of a cool third body, which is supported by the third light contribution in the photometric solutions. The third body in this system may play an important role in its formation and evolution by removing the angular momentum. More red dwarf contact binaries need to be found and studied, since they are rare and not enough is known to reveal their mysteries at present. |
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 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
WOS关键词 | SHORT-PERIOD LIMIT ; SYSTEMS |
资助项目 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11922306] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11933008] ; Chinese Academy of Sciences(CAS) Interdisciplinary Innovation Team - National Development and Reform Commission |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
WOS记录号 | WOS:000756649200001 |
出版者 | OXFORD UNIV PRESS |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11922306, 11933008] ; Chinese Academy of Sciences(CAS) Interdisciplinary Innovation Team - National Development and Reform Commission |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24909] ![]() |
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 | Xu HS(徐虎山) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming, P. O. Box 110, 650216, China; 2.University of the Chinese Academy of Sciences, Yuquan Road 19, Sijingshang Block, Beijing 100049, China; 3.National Astronomical Research Institute of Thailand, 191 Siriphanich Bldg., Huay Kaew Rd., Chiang Mai 50200, Thailand 4.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China; |
推荐引用方式 GB/T 7714 | Xu HS,Zhu LY,Thawicharat, Sarotsakulchai,et al. Red dwarf contact binary V0627 Hydrae[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2022. |
APA | Xu HS,Zhu LY,Thawicharat, Sarotsakulchai,Boonrucksar, Soonthornthum,&Liu L.(2022).Red dwarf contact binary V0627 Hydrae.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. |
MLA | Xu HS,et al."Red dwarf contact binary V0627 Hydrae".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN (2022). |
入库方式: OAI收割
来源:云南天文台
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