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Binary stars on the galaxy SFH
Zhang FH(张奉辉)1,2; Li LF(李立芳)1,2; Han ZW(韩占文)1,2; Zhang, F (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
会议录名称IAU Symposium Proceedings Series - FROM INTERSTELLAR CLOUDS TO STAR-FORMING GALAXIES: UNIVERSAL PROCESSES?
2016
卷号315
DOI10.1017/S1743921316008498
产权排序第1完成单位
收录类别CPCI
会议名称315th Symposium of the International-Astronomical-Union
会议日期2016-08-03
会议地点Honolulu, HI
关键词(Stars:) Binaries: General Galaxies: Evolution
摘要Using the Yunnan-II evolutionary population synthesis models comprising binary stars, we find that the inclusion of binary stars can raise the derived stellar metallicity Z* and/or age t (degeneracy problem), raise the stellar mass M*, lower the gaseous metallicity Z(gas) and star formation rate (SFR) of galaxies. This means that a few stars form recently in galaxies, while more stars form during the entire evolution process when considering binary stars. If the degeneracy between t and Z* can be broken, its effect on the feedback process and star formation history can be determined.
项目资助者Chinese Natural Science Foundation(11273053, 11573062, 11373063, 11390374, 1152100017) ; Yunnan Foundation(2011C1053) ; Chinese Natural Science Foundation(11273053, 11573062, 11373063, 11390374, 1152100017) ; Yunnan Foundation(2011C1053)
语种英语
学科领域天文学
文章类型Proceedings Paper
出版者CAMBRIDGE UNIV PRESS
出版地THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
ISBN号978-1-107-13520-8
ISSN号1743-9213
URL查看原文
WOS记录号WOS:000387795900085
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]EVOLUTIONARY POPULATION SYNTHESIS
引用统计
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9786
专题大样本恒星演化研究组
中国科学院天体结构与演化重点实验室
通讯作者Zhang, F (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650011, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China
推荐引用方式
GB/T 7714
Zhang FH,Li LF,Han ZW,et al. Binary stars on the galaxy SFH[C]. THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND:CAMBRIDGE UNIV PRESS,2016.
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