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The single-degenerate channel for the progenitors of Type Ia supernovae
Han ZW(韩占文)1; Podsiadlowski, P2; Han, Z (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming, Peoples R China.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2004-06-01
卷号350期号:4页码:1301-1309
DOI10.1111/j.1365-2966.2004.07713.x
产权排序第1完成单位
收录类别SCI
关键词Binaries : Close Stars : Evolution Supernovae : General White Dwarfs
摘要We have carried out a detailed studyh of one of the most favoured evolutionary channels for the production of Type Ia supernova (SN Ia) progenitors, the single-degenerate channel (CO + MS), where a carbon/oxygen (CO) white dwarf (WD) accretes matter from an unevolved or slightly evolved non-degenerate star until it reaches the Chandrasekhar mass limit. Employing Eggleton's stellar evolution code and adopting the prescription of Hachisu et al. for the accretion efficiency, we performed binary stellar evolution calculations for about 2300 close WD binary systems and mapped out the initial parameters in the orbital period-secondary mass (P-M(2)) plane (for a range of WD masses) which lead to a successful Type Ia supernova. We obtained accurate, analytical fitting formulae to describe this parameter range which can be used for binary population synthesis (BPS) studies. The contours in the P-M(2) plane differ from those obtained by Hachisu et al. for low-mass CO WDs, which are more common than massive CO WDs. We confirm that WDs with a mass as low as 0.67 M. can accrete efficiently and reach the Chandrasekhar limit. We have implemented these results in a BPS study to obtain the birth rates for SNe Ia and the evolution of birth rates with time of SNe Ia for both a constant star formation rate and a single starburst. The birth rates are lower than (but comparable to) those inferred observationally.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
归档日期2004-06-03
WOS记录号WOS:000221957800011
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]X-RAY SOURCES ; WHITE-DWARF BINARIES ; STELLAR EVOLUTION ; MASS-TRANSFER ; CYGNUS X-2 ; MODELS ; SYSTEMS ; STARS ; POPULATION ; LAMBDA
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/4409
专题大样本恒星演化研究组
通讯作者Han, Z (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, the Chinese Academy of Sciences, PO Box 110, Kunming 650011, China
2.University of Oxford, Department of Astrophysics, Keble Road, Oxford OX1 3RH
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Han ZW,Podsiadlowski, P,Han, Z . The single-degenerate channel for the progenitors of Type Ia supernovae[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2004,350(4):1301-1309.
APA Han ZW,Podsiadlowski, P,&Han, Z .(2004).The single-degenerate channel for the progenitors of Type Ia supernovae.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,350(4),1301-1309.
MLA Han ZW,et al."The single-degenerate channel for the progenitors of Type Ia supernovae".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 350.4(2004):1301-1309.
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