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Searching for Substellar Objects around HW Vir-like Binaries
Zhu LY(朱俐颖)1,2,3; Qian SB(钱声帮)1,2,3; Zhao EG(赵二刚)1,2; Liao WP(廖文萍)1,2; Liu L(刘亮)1,2; He JJ(何家佳)1,2; Zola, S.4,5
会议录名称Astronomical Society of the Pacific (ASP) Conference Series - TENTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS
2014-08
卷号482
页码101-105
会议录编者/会议主办者Lee, HW; Leung, KC; Kang, YW
产权排序第1完成单位
收录类别CPCI
会议名称10th Pacific Rim Conference on Stellar Astrophysics
会议日期2013-05-27
会议地点Sejong University Convention Center, Seoul, Korea
摘要

HW Vir-like eclipsing binaries are a group of detached binary systems that consists a very hot subdwarf B (sdB) type primary and a fully convective M-type secondary with short period. They display very narrow eclipse profiles, which give highly precise eclipse times. By analyzing the constructed observed-calculated (O-C) diagram based on the sdB eclipsing timings, We found very small-amplitude orbital period variations due to the presence of potential substellar object tertiaries (exoplanets and brown dwarfs) can be detected. The discovery of circumbinary substellar objects orbiting HW Vir-likeeclipsing binaries has very important implications for the formation of sdB stars and the fates of low-mass companion systems, etc. A search for the substellar objects around the HW Vir-like Binaries is one of the projects of our research group of Yunnan Observatories (YNO), which has been started from 2006. In this paper, we will present some new results on our three targets of this project, i.e. NSVS14256825, HS0705+6700 and NSVS07826147.

语种英语
学科领域天文学 ; 天体物理学 ; 恒星与银河系
学科门类理学 ; 理学::天文学
文章类型Proceedings Paper
出版者Astronomical Society of the Pacific
出版地390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
ISBN号978-1-58381-849-7; 978-1-58381-848-0
URL查看原文
归档日期2014-08-25
WOS记录号WOS:000374279800018
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]Eclipsing Sdb Binary ; Circumbinary Planets ; Hs 0705+6700 ; Ny Vir ; Companions ; Virginis ; Quest
引用统计
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9646
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Zhu LY(朱俐颖)
作者单位1.Yunnan Observatories, Chinese Academy of Science, P. O. Box 110, 650011 Kunming, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, China
3.Graduate University of the Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing City, China
4.Mt. Suhora Observatory of the Pedagogical University, ul. Podchor ¸a˙zych 2, 30-084 Cracow, Poland
5.Astronomical Observatory, Jagiellonian University, ul. Orla 171, 30-244, Krakow, Poland
推荐引用方式
GB/T 7714
Zhu LY,Qian SB,Zhao EG,et al. Searching for Substellar Objects around HW Vir-like Binaries[C]//Lee, HW; Leung, KC; Kang, YW. 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA:Astronomical Society of the Pacific,2014:101-105.
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