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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
Source PublicationASTRONOMICAL JOURNAL
2013-06
Volume145Issue:6Pages:156-161
DOI10.1088/0004-6256/145/6/156
Contribution Rank第1完成单位
Indexed BySCI
KeywordBinaries: Close Binaries: Eclipsing Stars: Evolution Stars: Individual (Fg Gem)
Abstract

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.

Funding ProjectChinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[10973037] ; Chinese Natural Science Foundation[10903026] ; Chinese Natural Science Foundation[11003040] ; West Light Foundation of the Chinese Academy of Sciences
Funding OrganizationChinese Natural Science Foundation[11133007, 10973037, 10903026, 11003040] ; West Light Foundation of the Chinese Academy of Sciences
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星天文学 ; 恒星形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
Archive Date2013-08-14
WOS IDWOS:000319167400013
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordVELOCITY CURVES ; LIGHT CURVES ; STAR LIGHT ; CATALOG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5887
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 AuthorZhang J(张嘉)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang J,Qian SB. A PHOTOMETRIC STUDY OF THE ALGOL-TYPE BINARY FG Gem[J]. ASTRONOMICAL JOURNAL,2013,145(6):156-161.
APA Zhang J,&Qian SB.(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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