WD plus RG systems as the progenitors of type Ia supernovae

doi:10.1088/1674-4527/10/3/005

YNAO OpenIR > 大样本恒星演化研究组

	WD plus RG systems as the progenitors of type Ia supernovae
	Wang B(王博)1,2 ; Han ZW(韩占文)1 ; Wang, B (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2010-03
卷号	10 期号:3 页码:235-243
DOI	10.1088/1674-4527/10/3/005
产权排序	第1完成单位
收录类别	SCI
关键词	Stars: Evolution Supernovae: General Binaries: Close White Dwarfs
摘要	Type Ia supernovae (SNe Ia) play an important role in the study of cosmic evolution, especially in cosmology. There are several progenitor models for SNe Ia proposed in the past years. By considering the effect of accretion disk instability on the evolution of white dwarf (WD) binaries, we performed detailed binary evolution calculations for the WD + red-giant (RG) channel of SNe Ia, in which a carbon-oxygen WD accretes material from a RG star to increase its mass to the Chandrasekhar mass limit. According to these calculations, we mapped out the initial and final parameters for SNe Ia in the orbital period-secondary mass (log P(i) - M(2)(i)) plane for various WD masses for this channel. We discussed the influence of the variation of the duty cycle value on the regions for producing SNe Ia. Similar to previous studies, this work also indicates that the long-period dwarf novae offer possible ways for producing SNe Ia. Meanwhile, we find that the surviving companion stars from this channel have a low mass after the SN explosion, which may provide a means for the formation of the population of single low-mass WDs (<0.45 M(circle dot)).
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	Astronomy & Astrophysics
文章类型	Article
ISSN	1674-4527
URL	查看原文
归档日期	2010-02-05
WOS记录号	WOS:000275962900005
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	MASS WHITE-DWARFS ; SINGLE-DEGENERATE CHANNEL ; STELLAR EVOLUTION ; DIFFERENT METALLICITIES ; SYMBIOTIC CHANNEL ; CORONAE BOREALIS ; BINARY-SYSTEMS ; GIANT BRANCH ; DELAY TIMES ; RS OPHIUCHI
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/114a53/4505
专题	大样本恒星演化研究组
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.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,Han ZW,Wang, B . WD plus RG systems as the progenitors of type Ia supernovae[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(3):235-243.
APA	Wang B,Han ZW,&Wang, B .(2010).WD plus RG systems as the progenitors of type Ia supernovae.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(3),235-243.
MLA	Wang B,et al."WD plus RG systems as the progenitors of type Ia supernovae".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.3(2010):235-243.

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