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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
会议录名称Astronomical Society of the Pacific (ASP) Conference Series - NINTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS
2012
卷号451
页码155-158
会议录编者/会议主办者Qian, SB; Leung, KC; Zhu, L; Kwok, S
产权排序第1完成单位
收录类别CPCI
会议名称9th Pacific Rim Conference on Stellar Astrophysics
会议日期2011-04-14
会议地点Lijiang, PEOPLES R CHINA
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 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.

资助项目Chinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[10973037] ; Chinese Natural Science Foundation[10903026] ; Chinese Natural Science Foundation[11003040] ; Yunnan Natural Science Foundation[2008CD157]
项目资助者Chinese Natural Science Foundation ; Yunnan Natural Science Foundation
语种英语
学科领域天文学 ; 天体物理学 ; 太阳与太阳系
学科门类理学 ; 理学::天文学
文章类型Proceedings Paper
出版者ASTRONOMICAL SOC PACIFIC
出版地390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
ISBN号978-1-58381-785-8
URL查看原文
归档日期2012-05-22
WOS记录号WOS:000304126300027
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]Stars ; Companion ; Evolution
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5958
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.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
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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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