The first photometric investigation of the poor-thermal contact binary V749 Aurigae | |
Chang LF(常林凤)3,4,5; Zhu LY(朱俐颖)2,3,4,5; Sarotsakulchai, Thawicharat1; Soonthornthum, Boonrucksar1 | |
刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN |
2022-10-13 | |
关键词 | binaries: close binaries: eclipsing stars: individual (V749 Aurigae) |
ISSN号 | 0004-6264 |
DOI | 10.1093/pasj/psac080 |
产权排序 | 第1完成单位 |
文献子类 | Article; Early Access |
英文摘要 | The multi-filter light curve analysis of V749 Aurigae (thereinafter V0749 Aur) is conducted for the first time. Its orbital period is improved from P = 0.409873 to 0.409890 d in this work. The photometric data from the All-Sky Automated Survey for SuperNovae (ASAS-SN) were utilized to examine the revised orbital period. Then, the phased multi-filter light curves were computed with the new period, and analyzed with the Wilson-Devinney (W-D) code. The results reveal that V0749 Aur is a marginal contact binary with a large temperature difference of about Delta T = 1600 K. It is a poor thermal contact binary, the light curves of which depart from EW-type and show EB-type light variations. Thus, V0749 Aur belongs to a particular group of binaries, named B-type binaries, predicted by the Thermal Relaxation Oscillation (TRO) theory. In addition, the amplitude differences in different bands of the light curves, imply the existence of a third light. The contribution of the third light detected by the light curve analysis is consistent with the contribution of a visual star, which is in the same line of sight as V0749 Aur but at a different distance. With its marginal contact and short period properties, V0749 Aur merits further attention as a potential transitional sample in binary evolution. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星天文学 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
资助项目 | National Natural Science Foundation of China[11922306] ; National Natural Science Foundation of China[11933008] ; China National Astronomical Data Center (NADC) ; Chinese Virtual Observatory (China-VO) ; National Astronomical Observatories, Chinese Academy of Sciences ; Alibaba Cloud |
WOS关键词 | STAR LIGHT ; SYSTEMS ; ANDROMEDAE ; CURVES ; V432 |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000866640100001 |
资助机构 | National Natural Science Foundation of China[11922306, 11933008] ; China National Astronomical Data Center (NADC) ; Chinese Virtual Observatory (China-VO) ; National Astronomical Observatories, Chinese Academy of Sciences ; Alibaba Cloud |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25596] |
专题 | 云南天文台_双星与变星研究组 |
通讯作者 | Chang LF(常林凤) |
作者单位 | 1.National Astronomical Research Institute of Thailand, 191 Siriphanich Building, Huay Kaew Road, Chiang Mai 50200, Thailand 2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China; 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China; 4.University of the Chinese Academy of Sciences, Yuquan Road 19, Sijingshang Block, Beijing 100049, China; 5.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming, P. O. Box 110, 650216, China; |
推荐引用方式 GB/T 7714 | Chang LF,Zhu LY,Sarotsakulchai, Thawicharat,et al. The first photometric investigation of the poor-thermal contact binary V749 Aurigae[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2022. |
APA | Chang LF,Zhu LY,Sarotsakulchai, Thawicharat,&Soonthornthum, Boonrucksar.(2022).The first photometric investigation of the poor-thermal contact binary V749 Aurigae.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. |
MLA | Chang LF,et al."The first photometric investigation of the poor-thermal contact binary V749 Aurigae".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN (2022). |
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