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A search for substellar objects orbiting the sdB eclipsing binary HS 0705+6700

文献类型：期刊论文

作者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
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2013-12
卷号436期号:2页码:1408-1414
关键词binaries: close binaries: eclipsing brown dwarfs stars: individual: HS 0705+6700 subdwarfs
ISSN号0035-8711
产权排序第一完成单位
通讯作者Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
英文摘要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.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]PRE-CATACLYSMIC BINARY ; SUBDWARF-B STARS ; SYSTEM HW VIR ; CIRCUMBINARY PLANETS ; SPECTRAL-ANALYSIS ; NY VIR ; PERIOD ; COMPANION
收录类别SCI
原文出处http://mnras.oxfordjournals.org/content/436/2/1408
语种英语
WOS记录号WOS:000327461100038
源URL[http://ir.ynao.ac.cn/handle/114a53/5873]  
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
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
推荐引用方式
GB/T 7714		 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.,...&Jiang LQ.(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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