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A search for substellar objects orbiting the sdB eclipsing binary HS 0705+6700
Qian SB(钱声帮)1,2,3; Shi G(时光)1,2,3; Zola, S4,5; Koziel-Wierzbowska, D4; Winiarski, M5; Szymanski, T4; Ogloza, W5; Li LJ(李临甲)1,2,3; Zhu LY(朱俐颖)1,2,3; Liu L(刘亮)1,2; He JJ(何家佳)1,2; Liao WP(廖文萍)1,2; Zhao EG(赵二刚)1,2; Wang JJ(王晶晶)1,2,3; Zhang J(张嘉)1,2,3; Jiang LQ(江林巧)1,2,3; Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2013-12
卷号436期号:2页码:1408-1414
DOI10.1093/mnras/stt1659
产权排序第1完成单位
收录类别SCI
关键词Binaries: Close Binaries: Eclipsing Brown Dwarfs Stars: Individual: Hs 0705+6700 Subdwarfs
摘要By using 78 newly determined timings of light minima together with those collected from the literature, we analysed the changes in the observed minus calculated (O-C) diagram in HS 0705+6700, a short-period (2.3 h) eclipsing binary that consists of a very hot subdwarf B-type (sdB) star and a very cool fully convective red dwarf. We confirmed the cyclic variation in the O-C and refined the parameters of the circumbinary brown dwarf (reported to orbit the binary system in 2009) by analysing the changes for the light travel time effect that arises from the gravitational influence of the third body. Our results indicate the lower mass limit of the third body to be M-3 sin i(') = 33.7(+/- 1.6) M-Jup. This companion would be a brown dwarf if its orbital inclination is larger than 27 degrees.7 and it is orbiting the central eclipsing binary with an eccentricity e similar to 0.2 at a separation of about 3.7(+/- 0.1) au.
项目资助者Chinese Natural Science Foundation through a key project [11133007]
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2013-11-19
WOS记录号WOS:000327461100038
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]PRE-CATACLYSMIC BINARY ; SUBDWARF-B STARS ; SYSTEM HW VIR ; CIRCUMBINARY PLANETS ; SPECTRAL-ANALYSIS ; NY VIR ; PERIOD ; COMPANION
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5873
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, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, People's Republic of China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, People's Republic of China
3.University of the Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, People's Republic of China
4.Astronomical Observatory, Jagiellonian University, ul. Orla 171, PL-30-244 Krakow, Poland
5.Mt Suhora Observatory, Pedagogical University, ul. Podchorazych 2, PL-30-084 Krakow, Poland
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Qian SB,Shi G,Zola, S,et al. A search for substellar objects orbiting the sdB eclipsing binary HS 0705+6700[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,436(2):1408-1414.
APA Qian SB.,Shi G.,Zola, S.,Koziel-Wierzbowska, D.,Winiarski, M.,...&Qian, SB .(2013).A search for substellar objects orbiting the sdB eclipsing binary HS 0705+6700.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,436(2),1408-1414.
MLA Qian SB,et al."A search for substellar objects orbiting the sdB eclipsing binary HS 0705+6700".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 436.2(2013):1408-1414.
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