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A Preliminary Photometric Study of the HW Vir-like Binary NSVS14256825
Zhu LY(朱俐颖)1,2; Qian SB(钱声帮)1,2; Liu L(刘亮)1,2; Liao WP(廖文萍)1,2; He JJ(何家佳)1,2; Li LJ(李临甲)1,2; Zhao EG(赵二刚)1,2; Dai ZB(戴智斌)1,2; Zhang J(张嘉)1,2,3; Li K(李凯)1,2,3
Source PublicationAstronomical Society of the Pacific (ASP) Conference Series - NINTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS
2012
Volume451
Pages155-158
Author of SourceQian, SB; Leung, KC; Zhu, L; Kwok, S
Contribution Rank第1完成单位
Indexed ByCPCI
Conference Name9th Pacific Rim Conference on Stellar Astrophysics
Conference Date2011-04-14
Conference PlaceLijiang, PEOPLES R CHINA
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 periods shorter than 4 hours. Here we report the preliminary photometric study of the HW Vir-like binary NSVS14256825 based on our four years data. By analyzing the high precise BV(IR)(c) light curves of NSVS14256825 with the 2003 version of Wilson-Van Hamme code, we derived the mass ratio of this binary as q = 0.22. Assuming the mass of the primary component of NS14256825 is 0.46M(circle dot) the mass of its secondary component should be 0.1M(circle dot)(105M(Jup)) for the fully convective star. The O-C diagram of NS14256825 is shown here and the detail analysis is in progress.

Funding ProjectChinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[10973037] ; Chinese Natural Science Foundation[10903026] ; Chinese Natural Science Foundation[11003040] ; Yunnan Natural Science Foundation[2008CD157]
Funding OrganizationChinese Natural Science Foundation ; Yunnan Natural Science Foundation
Language英语
Subject Area天文学 ; 天体物理学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherASTRONOMICAL SOC PACIFIC
Publication Place390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
ISBN978-1-58381-785-8
URL查看原文
Archive Date2012-05-22
WOS IDWOS:000304126300027
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordStars ; Companion ; Evolution
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5958
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.National Astronomical Observatories/Yunnan Astronomical Observatory, 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 School of the Chinese Academy of Sciences, Beijing 100039, China
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,Liu L,et al. A Preliminary Photometric Study of the HW Vir-like Binary NSVS14256825[C]//Qian, SB; Leung, KC; Zhu, L; Kwok, S. 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA:ASTRONOMICAL SOC PACIFIC,2012:155-158.
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