YNAO OpenIR  > 双星与变星研究组
A giant planet in orbit around a magnetic-braking hibernating cataclysmic variable
Qian SB(钱声帮)1,2,3; Liao WP(廖文萍)1,2,3; Zhu LY(朱俐颖)1,2,3; Dai ZB(戴智斌)1,2,3; Liu L(刘亮)1,2,3; He JJ(何家佳)1,2,3; Zhao EG(赵二刚)1,2,3; Li LJ(李临甲)1,2,3; Qian, SB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2010
卷号401期号:1页码:L34-L38
DOI10.1111/j.1745-3933.2009.00780.x
产权排序第1完成单位
收录类别SCI
关键词Binaries: Close Binaries: Eclipsing Stars: Individual: Qs Vir Planetary Systems White Dwarf
摘要Detections of Jupiter-like giant planets in orbit around short-period white dwarf binaries should provide insight into the formation and evolution of circumbinary planets (planets orbiting both components of short-period binaries), as well as into the ultimate fate of planets and the late evolutionary stage of binary stars (e.g. the evolution of the common envelope). However, to date no planets have been detected as companions to such close binaries. Here, we report the discovery of a giant planet orbiting the only known hibernating cataclysmic variable (CV), QS Vir, with a period of 7.86 yr. We analysed the variations of the orbital period of the eclipsing white dwarf-red dwarf binary, and a very small-amplitude cyclic change is found to be superimposed on a long-term period decrease. The period oscillation has the smallest amplitude among close binary stars and can be plausibly interpreted as the light-travel time effect via the presence of a third body. We found that the tertiary component is a giant planet with a mass of similar to 6.4 M(Jupiter) at a distance of similar to 4.2 astronomical units (au) from the binary. The continuous decrease is explained as angular momentum loss via magnetic braking which is driving the evolution of the hibernating CV into a normal cataclysmic binary.
项目资助者Chinese Natural Science Foundation [10973037, 10903026, 10778718] ; National Key Fundamental Research Project [2007CB815406] ; Yunnan Natural Science Foundation [2008CD157] ; Special Foundation of President and West Light Foundation of the Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
归档日期2010-01-26
WOS记录号WOS:000272867100008
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BROWN DWARF COMPANION ; WHITE-DWARFS ; BINARY-SYSTEMS ; STAR ; EVOLUTION ; CONFIRMATION ; SUBSTELLAR ; YOUNG
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5844
专题双星与变星研究组
中国科学院天体结构与演化重点实验室
通讯作者Qian, SB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, China
2.Graduate University of the Chinese Academy of Sciences, Yuquan Road 19, Sijingshang Block, 100049 Beijing, China
3.Laboratory for the Structure and Evolution of Celestial Bodies, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, China
推荐引用方式
GB/T 7714
Qian SB,Liao WP,Zhu LY,et al. A giant planet in orbit around a magnetic-braking hibernating cataclysmic variable[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,401(1):L34-L38.
APA Qian SB.,Liao WP.,Zhu LY.,Dai ZB.,Liu L.,...&Qian, SB .(2010).A giant planet in orbit around a magnetic-braking hibernating cataclysmic variable.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,401(1),L34-L38.
MLA Qian SB,et al."A giant planet in orbit around a magnetic-braking hibernating cataclysmic variable".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 401.1(2010):L34-L38.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
A giant planet in or(642KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Qian SB(钱声帮)]的文章
[Liao WP(廖文萍)]的文章
[Zhu LY(朱俐颖)]的文章
百度学术
百度学术中相似的文章
[Qian SB(钱声帮)]的文章
[Liao WP(廖文萍)]的文章
[Zhu LY(朱俐颖)]的文章
必应学术
必应学术中相似的文章
[Qian SB(钱声帮)]的文章
[Liao WP(廖文萍)]的文章
[Zhu LY(朱俐颖)]的文章
相关权益政策
暂无数据
收藏/分享
文件名: A giant planet in orbit around a magnetic-braking hibernating cataclysmic variable.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。