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The near-contact binary RU ursae minoris
Zhu LY(朱俐颖); Qian SB(钱声帮); Xiang, FY; Zhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2006
卷号58期号:2页码:361-366
产权排序第1完成单位
收录类别SCI
关键词Stars : Binaries : Eclipsing Stars : Evolution Stars : Individual (Ru Ursae Minoris) Stars : Mass Loss
摘要The near-contact binary RU UMi with an F0-type primary and a K-type secondary was observed in 2003. With the latest version of the Wilson-Devinney code, the photometric elements were computed. The results reveal that RU UMi is a semi-detached system with the secondary component filling its Roche lobe. which should lead to an increase of the period for conservative mass transfer between the two components. However, an orbital period analysis shows that the orbital period of this system undergoes a continuous decrease at a rate of dP/dt 1.72 x 10(-8)d yr(-1). Therefore, the continuous period decrease may demonstrate that the system is nonconservative. This can result from a combined effect of mass transfer from the secondary component to the primary one and mass and angular momentum loss from the system. With the secular mass and angular momentum losses, RU UMi may evolve from the present short-period near-contact system into an A-type contact binary.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6264
URL查看原文
归档日期2006-04-24
WOS记录号WOS:000237491800016
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ANGULAR-MOMENTUM LOSS ; LIGHT CURVES ; STAR LIGHT ; CANIS-MINORIS ; POSSIBLE MASS ; PERIOD ; SYSTEMS ; PHOTOMETRY
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5793
专题双星与变星研究组
通讯作者Zhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
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Zhu LY,Qian SB,Xiang, FY,et al. The near-contact binary RU ursae minoris[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2006,58(2):361-366.
APA 朱俐颖,钱声帮,Xiang, FY,&Zhu, LY .(2006).The near-contact binary RU ursae minoris.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,58(2),361-366.
MLA 朱俐颖,et al."The near-contact binary RU ursae minoris".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 58.2(2006):361-366.
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