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THE BIRTH RATE OF SNe Ia FROM HYBRID CONe WHITE DWARFS
Meng XC(孟祥存)1,2; Podsiadlowski, P3; Meng, XC (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
2014-07-10
发表期刊ASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
卷号789期号:2
产权排序第1完成单位
摘要Considering the uncertainties of the C-burning rate (CBR) and the treatment of convective boundaries, Chen et al. found that there is a regime where it is possible to form hybrid CONe white dwarfs (WDs), i.e., ONe WDs with carbon-rich cores. As these hybrid WDs can be as massive as 1.30 M-circle dot, not much mass needs to be accreted for these objects to reach the Chandrasekhar limit and to explode as Type Ia supernovae (SNe Ia). We have investigated their contribution to the overall SN Ia birth rate and found that such SNe Ia tend to be relatively young with typical time delays between 0.1 and 1 Gyr, where some may be as young as 30 Myr. SNe Ia from hybrid CONe WDs may contribute several percent to all SNe Ia, depending on the common-envelope ejection efficiency and the CBR. We suggest that these SNe Ia may produce part of the 2002cx-like SN Ia class.
关键词Supernovae: General White Dwarfs
学科领域Astronomy & Astrophysics
DOI10.1088/2041-8205/789/2/L45
项目资助者NSFC [11273012, 11033008] ; Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences
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收录类别SCI
语种英语
文章类型Article
WOS研究方向Astronomy & Astrophysics
归档日期2014-07-05
WOS标题词Science & Technology ; Physical Sciences
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000339876800020
关键词[WOS]SINGLE-DEGENERATE CHANNEL ; SUPERNOVA RATES ; DIFFERENT METALLICITIES ; CIRCUMSTELLAR MATERIAL ; DELAY TIMES ; PROGENITORS ; MASS ; EVOLUTION ; STARS ; MODEL
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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/114a53/4576
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Meng, XC (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, 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.Department of Astronomy, Oxford University, Oxford OX1 3RH, UK
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Meng XC,Podsiadlowski, P,Meng, XC . THE BIRTH RATE OF SNe Ia FROM HYBRID CONe WHITE DWARFS[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,789(2).
APA Meng XC,Podsiadlowski, P,&Meng, XC .(2014).THE BIRTH RATE OF SNe Ia FROM HYBRID CONe WHITE DWARFS.ASTROPHYSICAL JOURNAL LETTERS,789(2).
MLA Meng XC,et al."THE BIRTH RATE OF SNe Ia FROM HYBRID CONe WHITE DWARFS".ASTROPHYSICAL JOURNAL LETTERS 789.2(2014).
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