Birthrates and delay times of Type Ia supernovae

doi:10.1007/s11433-010-0152-8

YNAO OpenIR > 大样本恒星演化研究组

	Birthrates and delay times of Type Ia supernovae
	Wang B(王博)1,2,3 ; Liu ZW(柳正伟)1,2,3 ; Han YK(韩云坤)1,2,3 ; Lei ZX(雷振新)1,2,3 ; Luo YP(罗杨平)1,2,3 ; Han ZW(韩占文)1,2 ; Wang, B (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2010-03
卷号	53 期号:3 页码:586-590
DOI	10.1007/s11433-010-0152-8
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Binaries: Close Stars: Evolution Supernovae: General White Dwarfs
摘要	Type Ia supernovae (SNe Ia) play an important role in diverse areas of astrophysics, from the chemical evolution of galaxies to observational cosmology. However, the nature of the progenitors of SNe Ia is still unclear. In this paper, according to a detailed binary population synthesis study, we obtained SN Ia birthrates and delay times from different progenitor models, and compared them with observations. We find that the Galactic SN Ia birthrate from the double-degenerate (DD) model is close to those inferred from observations, while the birthrate from the single-degenerate (SD) model accounts for only about 1/2-2/3 of the observations. If a single starburst is assumed, the distribution of the delay times of SNe Ia from the SD model is a weak bimodality, where the WD + He channel contributes to the SNe Ia with delay times shorter than 100 Myr, and the WD + MS and WD + RG channels to those with age longer than 1Gyr.
项目资助者	National Natural Science Foundation of China [10821061] ; National Basic Research Program of China [2007CB815406] ; Yunnan Natural Science Foundation [08YJ041001]
语种	英语
学科领域	Physics
文章类型	Article
ISSN	1674-7348
URL	查看原文
归档日期	2010-03-08
WOS记录号	WOS:000276661700036
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
关键词[WOS]	SINGLE-DEGENERATE CHANNEL ; CORONAE BOREALIS ; PROGENITORS ; BINARIES ; STARS ; EVOLUTION ; MASS ; POPULATIONS ; CLUSTERS ; DWARF
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/4506
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	Wang, B (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, 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 3.Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Wang B,Liu ZW,Han YK,et al. Birthrates and delay times of Type Ia supernovae[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(3):586-590.
APA	Wang B.,Liu ZW.,Han YK.,Lei ZX.,Luo YP.,...&Wang, B .(2010).Birthrates and delay times of Type Ia supernovae.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(3),586-590.
MLA	Wang B,et al."Birthrates and delay times of Type Ia supernovae".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.3(2010):586-590.

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