The Impacts of Continuous Infall, Outflow and Star Formation on the Chemical Evolution of Galaxies

被引：0
|
作者：
Zhao, Hai-Jie [1 ]
Chen, Jian-Zhen [2 ]
Luo, Zhi-Jian [2 ]
机构：
[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[2] Shanghai Normal Univ, Shanghai Key Lab Astrophys, Shanghai 200234, Peoples R China
来源：
GALAXY EVOLUTION: INFRARED TO MILLIMETER WAVELENGTH PERSPECTIVE | 2011年 / 446卷
基金：
中国国家自然科学基金;
关键词：
METALLICITY RELATION; MASS; ORIGIN; MATTER; YIELDS; MODEL;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
By extending the discussions in Dalcanton (2007) which focused on single "impulsive" infall and outflow without interleaved star formation behavior, we study the impacts on the galaxy chemical evolution caused by continuous infall, outflow and star formation. Our general results agree well with Dalcanton (2007), i.e. neither continuous infall nor continuous unenriched outflow model could reproduce the observational metallicity of galaxies, but the continuous enriched outflow model could. Furthermore, we also calculated and compared the impacts of different timescales of infall/outflow and enrichment fraction on galaxy metallicity. It is found that these different timescales would have significant effects on metallicity of galaxies.
引用
收藏
页码：175 / +
页数：2
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