Progenitors of type Ia supernovae

	Progenitors of type Ia supernovae
	Wang B(王博)1,2 ; Han ZW(韩占文)1,2
刊名	NEW ASTRONOMY REVIEWS
	2012-06
卷号	56 期号:4 页码:122-141
ISSN号	1387-6473
通讯作者	Wang, B (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Type Ia supernovae (SNe Ia) play an important role in astrophysics and are crucial for the studies of stellar evolution, galaxy evolution and cosmology. They are generally thought to be thermonuclear explosions of accreting carbon-oxygen white dwarfs (CO WDs) in close binaries, however, the nature of the mass donor star is still unclear. In this article, we review various progenitor models proposed in the past years and summarize many observational results that can be used to put constraints on the nature of their progenitors. We also discuss the origin of SN Ia diversity and the impacts of SN Ia progenitors on some fields. The currently favourable progenitor model is the single-degenerate (SD) model, in which the WD accretes material from a non-degenerate companion star. This model may explain the similarities of most SNe Ia. It has long been argued that the double-degenerate (DD) model, which involves the merger of two CO WDs, may lead to an accretion-induced collapse rather than a thermonuclear explosion. However, recent observations of a few SNe Ia seem to support the DD model, and this model can produce normal SN la explosion under certain conditions. Additionally, the sub-luminous SNe la may be explained by the sub-Chandrasekhar mass model. At present, it seems likely that more than one progenitor model, including some variants of the SD and DD models, may be required to explain the observed diversity of SNe Ia. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
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]	MASS WHITE-DWARFS ; X-RAY SOURCES ; ASYMPTOTIC-GIANT-BRANCH ; DELAY-TIME DISTRIBUTION ; SUB-CHANDRASEKHAR SUPERNOVAE ; BINARY POPULATION SYNTHESIS ; SINGLE-DEGENERATE CHANNEL ; LARGE-MAGELLANIC-CLOUD ; STAR-FORMATION HISTORY ; EARLY-TYPE GALAXIES
收录类别	SCI
原文出处	http://www.sciencedirect.com/science/article/pii/S138764731200022X
语种	英语
WOS记录号	WOS:000305921000002
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4534]
专题	云南天文台_大样本恒星演化研究组云南天文台_中国科学院天体结构与演化重点实验室
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
推荐引用方式 GB/T 7714	Wang B,Han ZW. Progenitors of type Ia supernovae[J]. NEW ASTRONOMY REVIEWS,2012,56(4):122-141.
APA	Wang B,&Han ZW.(2012).Progenitors of type Ia supernovae.NEW ASTRONOMY REVIEWS,56(4),122-141.
MLA	Wang B,et al."Progenitors of type Ia supernovae".NEW ASTRONOMY REVIEWS 56.4(2012):122-141.