Model-synthesized rate of Type Ia Supernovae and its influence on the chemical enrichment of the ISM

	Model-synthesized rate of Type Ia Supernovae and its influence on the chemical enrichment of the ISM
	Guo W(郭文)1,2; Zhang FH(张奉辉)1 ; Meng XC(孟祥存)1,2 ; Li ZM(李忠木)1,2 ; Han ZW(韩占文)1
刊名	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2008
卷号	8 期号:1 页码:63-70
关键词	galaxies : abundances supernovae : general galaxies : stellar content white dwarfs
ISSN号	1009-9271
通讯作者	Guo, W
产权排序	第一完成单位
英文摘要	Using Hurley's rapid binary stellar evolution code, we have studied the model-synthesized rate of Type Ia Supernovae (SNe Ia) and its influence on the chemical enrichment of the interstellar medium ejected by stellar populations. We adopt two popular scenarios, i.e., single degenerate scenario (SD) and double degenerate scenario (DD), for the progenitors of SNe Ia to calculate the rates of SNe Ia. Rates calculated in this work agree with that of Hachisu et al. and Han & Podsiadlowski, but are different from that usually adopted in chemical evolution models of galaxies. We apply the rates of SNe Ia to the chemical enrichment (especially Fe enrichment), then compare the results with previous studies. As known SNe Ia slightly affect the enrichment of C, N, O and Mg elements, while significantly affect the enrichment of Fe. We find that the occurrence and the value of the Fe enrichment in our models are earlier and smaller than that commonly adopted in chemical evolution models. We also study the evolution of [Mg/Fe] ratios, which are almost reciprocals of the Fe enrichment. The study may provide constraints on the free parameters of chemical evolution models of galaxies and evolutionary population synthesis.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	WHITE-DWARFS ; SPECTROSCOPIC BINARIES ; PROGENITOR SYSTEMS ; SOLAR NEIGHBORHOOD ; EVOLUTION ; MASS ; NUCLEOSYNTHESIS ; STARS ; METALLICITY ; COMPONENTS
收录类别	SCI
原文出处	http://iopscience.iop.org/1009-9271/8/1/06/
语种	英语
WOS记录号	WOS:000253671300006
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4461]
专题	云南天文台_大样本恒星演化研究组
作者单位	1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 2.Graduate School of Chinese Academy of Sciences, Beijing 100049
推荐引用方式 GB/T 7714	Guo W,Zhang FH,Meng XC,et al. Model-synthesized rate of Type Ia Supernovae and its influence on the chemical enrichment of the ISM[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2008,8(1):63-70.
APA	Guo W,Zhang FH,Meng XC,Li ZM,&Han ZW.(2008).Model-synthesized rate of Type Ia Supernovae and its influence on the chemical enrichment of the ISM.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,8(1),63-70.
MLA	Guo W,et al."Model-synthesized rate of Type Ia Supernovae and its influence on the chemical enrichment of the ISM".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 8.1(2008):63-70.