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题名:
The core-degenerate scenario for the progenitors of Type Ia supernovae
作者: Wang B(王博)1,2,3; Zhou, W. -H.2,4; Zuo, Z. -Y.5; Li, Y. -B.6; Luo, X.7; Zhang JJ(张居甲)1,2; Liu DD(刘栋栋)1,2,3; Wu CY(吴程远)1,2,3
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2017-02-01
卷号: 464, 期号:4, 页码:3965-3971
DOI: 10.1093/mnras/stw2646
学科分类: 天文学
产权排序: 第1完成单位
收录类别: SCI
通讯作者: Wang, B.(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China)
关键词: binaries: close ; stars: evolution ; supernovae: general ; white dwarfs
英文摘要: The origin of the progenitors of Type Ia supernovae (SNe Ia) is still uncertain. The core-degenerate (CD) scenario has been proposed as an alternative way for the production of SNe Ia. In this scenario, SNe Ia are formed at the final stage of common-envelope evolution from a merger of a carbon-oxygen white dwarf (CO WD) with the CO core of an asymptotic giant branch companion. However, the birthrates of SNe Ia from this scenario are still not well determined. In this work, we performed a detailed investigation on the CD scenario based on a binary population synthesis approach. The SN Ia delay times from this scenario are basically in the range of 90-2500 Myr, mainly contributing to the observed SNe Ia with short and intermediate delay times, although this scenario can also produce some old SNe Ia. Meanwhile, our work indicates that the Galactic birthrates of SNe Ia from this scenario are not more than 20 per cent of total SNe Ia due to more careful treatment of mass transfer. Although the SN Ia birthrates in this work are lower than those in Ilkov & Soker, the CD scenario cannot be ruled out as a viable mechanism for the formation of SNe Ia. Especially, SNe Ia with circumstellar material from this scenario contribute to 0.7-10 per cent of total SNe Ia, which means that the CD scenario can reproduce the observed birthrates of SNe Ia like PTF 11kx. We also found that SNe Ia happen systemically earlier for a high value of metallicity and their birthrates increase with metallicity.
项目资助者: National Basic Research Program of China (973 programme)(2014CB845700) ; National Natural Science Foundation of China(11673059, 11322327, 11390374, 11521303, 11303036, 11573021, 11403096, 61561053) ; Chinese Academy of Sciences(QYZDB-SSW-SYS001, XDB09010202, KJZD-EW-M06-01) ; Fundamental Research Funds for the Central Universities ; Natural Science Basic Research Program of Shaanxi Province - Youth Talent Project(2016JQ1016) ; Natural Science Foundation of Yunnan Province(2013HB097, 2013FB083) ; Youth Innovation Promotion Association CAS
语种: 英语
原文出处: 查看原文
ISSN号: 0035-8711
文章类型: Article
归档日期: 2017-01-10
WOS标题词: Science & Technology ; Physical Sciences
研究领域[WOS]: Astronomy & Astrophysics
类目[WOS]: Astronomy & Astrophysics
关键词[WOS]: DELAY-TIME DISTRIBUTION ; WHITE-DWARF BINARIES ; MASS-RATIO DISTRIBUTION ; STAR DONOR CHANNEL ; COMMON ENVELOPE ; DIFFERENT METALLICITIES ; SPECTROSCOPIC BINARIES ; POPULATION SYNTHESIS ; PLANETARY-NEBULAE ; PTF 11KX
WOS记录号: WOS:000393780500014
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ynao.ac.cn/handle/114a53/9982
Appears in Collections:大样本恒星演化研究组_期刊论文
中国科学院天体结构与演化重点实验室_期刊论文

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作者单位: 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
4.Yunnan Minzu University, Kunming 650031, China
5.School of Science, Xi’an Jiaotong University, Xi’an 710049, China
6.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
7.Department of Astronomy, Beijing Normal University, Beijing 100875, China

Recommended Citation:
Wang B,Zhou, W. -H.,Zuo, Z. -Y.,et al. The core-degenerate scenario for the progenitors of Type Ia supernovae[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,464(4):3965-3971.
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