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modelsynthesizedrateoftypeiasupernovaeanditsinfluenceonthechemicalenrichmentoftheism
Wen Guo; FengHui Zhang; XiangCun Meng; ZhongMu Li; ZhanWen Han
2008
Source Publicationchineseastronomyandastrophysics
ISSN0275-1062
Volume8Issue:1Pages:63
AbstractUsing Hurley's rapid binary stellar evolution code, we have studied the model-synthesized rate of Type la 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 chem-ical 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 en-richment 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.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/39916
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wen Guo,FengHui Zhang,XiangCun Meng,et al. modelsynthesizedrateoftypeiasupernovaeanditsinfluenceonthechemicalenrichmentoftheism[J]. chineseastronomyandastrophysics,2008,8(1):63.
APA Wen Guo,FengHui Zhang,XiangCun Meng,ZhongMu Li,&ZhanWen Han.(2008).modelsynthesizedrateoftypeiasupernovaeanditsinfluenceonthechemicalenrichmentoftheism.chineseastronomyandastrophysics,8(1),63.
MLA Wen Guo,et al."modelsynthesizedrateoftypeiasupernovaeanditsinfluenceonthechemicalenrichmentoftheism".chineseastronomyandastrophysics 8.1(2008):63.
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