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A photometric study of a new short period eclipsing sdB binary NSVS 07826147
Zhu LY(朱俐颖)1,2; Qian SB(钱声帮)1,2; Zhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICS AND SPACE SCIENCE
2010-10
卷号329期号:1-2页码:107-112
DOI10.1007/s10509-010-0354-6
产权排序第1完成单位
收录类别SCI
关键词Stars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individual (Nsvs 07826147)
摘要NSVS 07826147 and NSVS 04818255 were suspected as possible eclipsing sdB binary systems by Kelley and Shaw. In order to investigate the short period eclipsing sdB binaries, we have listed them as our observing targets and began to monitor it from March 2009. Till now, we have obtained four complete CCD light curves and 16 high precise times of light minimum of NSVS 07826147. All light curves show strong reflection and a very narrow eclipse, which implies that NSVS 07826147 should be a new short period eclipsing sdB binary. For the system NSVS 04818255, no eclipse character was found in the light curves according to our observations. However, we found that a star near NSVS 04818255 is a close binary system with a period of about 0.32498 days. Up to now, only seven short period eclipsing sdB binary systems have been found, including NSVS 07826147. With the new precise epochs obtained by us, the new period of this system is derived as 0.16177046(5) days, which can be used to predict the epochs of light minimum. Furthermore, the light curves of NSVS 07826147 are analyzed using the Wilson-Van Hamme code and the testing photometric solutions are presented and discussed.
项目资助者Special Foundation of the President of The Chinese Academy of Sciences ; West Light Foundation of The Chinese Academy of Sciences ; Chinese Natural Science Foundation [10973037, 10903026] ; Yunnan Natural Science Foundation [2008CD157] ; National Key Fundamental Research Project [2007CB815406]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-640X
URL查看原文
WOS记录号WOS:000282823200018
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]HW VIR-TYPE ; ORBITAL PERIOD ; LIGHT CURVES ; STARS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5835
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 (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011, Kunming, P.R. China
2.Laboratory for the Structure and Evolution of Celestial Bodies, Chinese Academy of Sciences, P.O. Box 110, 650011, Kunming, P.R. China
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Zhu LY,Qian SB,Zhu, LY . A photometric study of a new short period eclipsing sdB binary NSVS 07826147[J]. ASTROPHYSICS AND SPACE SCIENCE,2010,329(1-2):107-112.
APA Zhu LY,Qian SB,&Zhu, LY .(2010).A photometric study of a new short period eclipsing sdB binary NSVS 07826147.ASTROPHYSICS AND SPACE SCIENCE,329(1-2),107-112.
MLA Zhu LY,et al."A photometric study of a new short period eclipsing sdB binary NSVS 07826147".ASTROPHYSICS AND SPACE SCIENCE 329.1-2(2010):107-112.
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