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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
Source PublicationAstronomical Society of the Pacific (ASP) Conference Series - TENTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS
2014-08
Volume482
Pages101-105
Author of SourceLee, HW; Leung, KC; Kang, YW
Contribution Rank第1完成单位
Indexed ByCPCI
Conference Name10th Pacific Rim Conference on Stellar Astrophysics
Conference Date2013-05-27
Conference PlaceSejong University Convention Center, Seoul, Korea
Abstract

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.

Funding ProjectChinese Natural Science Foundation through a key project[11133007]
Funding OrganizationChinese Natural Science Foundation through a key project
Language英语
Subject Area天文学 ; 天体物理学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherAstronomical Society of the Pacific
Publication Place390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
ISBN978-1-58381-849-7; 978-1-58381-848-0
URL查看原文
Archive Date2014-08-25
WOS IDWOS:000374279800018
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordEclipsing Sdb Binary ; Circumbinary Planets ; Hs 0705+6700 ; Ny Vir ; Companions ; Virginis ; Quest
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9646
Collection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
Corresponding AuthorZhu LY(朱俐颖)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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