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A PHOTOMETRIC STUDY OF THE ALGOL-TYPE BINARY FG Gem
Zhang J(张嘉)1,2,3; Qian SB(钱声帮)1,2,3; Zhang, J (reprint author), Chinese Acad Sci, Natl Astron Observatories Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊ASTRONOMICAL JOURNAL
2013-06
卷号145期号:6页码:156-161
DOI10.1088/0004-6256/145/6/156
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收录类别SCI
关键词Binaries: Close Binaries: Eclipsing Stars: Evolution Stars: Individual (Fg Gem)
摘要High-quality three-color light curves of the binary FG Gem were measured and analyzed. A new method based on extensive searching of isochrones was used to investigate possible parameters for the binary. FG Gem is found to be an Algol-type semi-detached binary system with a primary star temperature of 8200 K and a mass ratio of 0.41(1). The correctness and reliability of our result requires the verification of precision spectroscopy or standard star observations. We investigate a new possible cause for the orbital period variations based on times of minimum light data. It is suggested from the quantitative analysis that variations in the orbital period can be explained by intermittent mass transfer and angular momentum loss from stellar winds leaving the system on rotating magnetic fields.
项目资助者Chinese Natural Science Foundation [11133007, 10973037, 10903026, 11003040] ; West Light Foundation of the Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6256
URL查看原文
归档日期2013-08-14
WOS记录号WOS:000319167400013
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]VELOCITY CURVES ; LIGHT CURVES ; STAR LIGHT ; CATALOG
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5887
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Zhang, J (reprint author), Chinese Acad Sci, Natl Astron Observatories Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China
3.Graduate University of the Chinese Academy of Sciences, Yuquan Road 19, Sijingshang Block, 100049 Beijing City, China
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Zhang J,Qian SB,Zhang, J . A PHOTOMETRIC STUDY OF THE ALGOL-TYPE BINARY FG Gem[J]. ASTRONOMICAL JOURNAL,2013,145(6):156-161.
APA Zhang J,Qian SB,&Zhang, J .(2013).A PHOTOMETRIC STUDY OF THE ALGOL-TYPE BINARY FG Gem.ASTRONOMICAL JOURNAL,145(6),156-161.
MLA Zhang J,et al."A PHOTOMETRIC STUDY OF THE ALGOL-TYPE BINARY FG Gem".ASTRONOMICAL JOURNAL 145.6(2013):156-161.
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