| The helium star donor channel for the progenitors of Type Ia supernovae | |
Wang B(王博)1,2 ; Meng, X3; Chen XF(陈雪飞)1; 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 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 2009-05-11 | |
| 卷号 | 395期号:2页码:847-854 |
| DOI | 10.1111/j.1365-2966.2009.14545.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 | Type Ia supernovae (SNe Ia) play an important role in astrophysics, especially in the study of cosmic evolution. Several progenitor models for SNe Ia have been proposed in the past. In this paper we carry out a detailed study of the He star donor channel, in which a carbon-oxygen white dwarf (CO WD) accretes material from a He main-sequence star or a He subgiant to increase its mass to the Chandrasekhar mass. Employing Eggleton's stellar evolution code with an optically thick wind assumption, and adopting the prescription of Kato & Hachisu for the mass accumulation efficiency of the He-shell flashes on to the WDs, we performed binary evolution calculations for about 2600 close WD binary systems. According to these calculations, we mapped out the initial parameters for SNe Ia in the orbital period-secondary mass (log P(i)-M(2)(i)) plane for various WD masses from this channel. The study shows that the He star donor channel is noteworthy for producing SNe Ia (similar to 1.2 x 10(-3) yr(-1) in our Galaxy), and that the progenitors from this channel may appear as supersoft X-ray sources. Importantly, this channel can explain SNe Ia with short delay times (similar to 10(8) yr), which is consistent with the recent observational implications of young populations of SN Ia progenitors. |
| 项目资助者 | National Natural Science Foundation of China [10433030, 10521001, 2007CB815406, 10603013] ; Foundation of the Chinese Academy of Sciences [06YQ011001] |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0035-8711 |
| URL | 查看原文 |
| 归档日期 | 2009-04-28 |
| WOS记录号 | WOS:000265509500020 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | X-RAY SOURCES ; SINGLE-DEGENERATE MODEL ; ACCRETING WHITE-DWARFS ; STELLAR EVOLUTION ; EXPLOSION MODELS ; BINARY-SYSTEMS ; KPD 1930+2752 ; NEUTRON-STAR ; SHELL SOURCE ; LOW-MASS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4475 |
| 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.ational Astronomical Observatories/Yunnan Observatory, the Chinese Academy of Sciences, Kunming 650011, China 2.Graduate School of the Chinese Academy of Sciences, Beijing 100049, China 3.Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, 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,Meng, X,Chen XF,et al. The helium star donor channel for the progenitors of Type Ia supernovae[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2009,395(2):847-854. |
| APA | Wang B,Meng, X,Chen XF,Han ZW,&Wang, B .(2009).The helium star donor channel for the progenitors of Type Ia supernovae.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,395(2),847-854. |
| MLA | Wang B,et al."The helium star donor channel for the progenitors of Type Ia supernovae".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 395.2(2009):847-854. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| The helium star dono（713KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论