| WD plus He star systems as the progenitors of Type Ia supernovae and their surviving companion stars | |
Wang B(王博)1,2 ; Han ZW(韩占文)1; Wang, B (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
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| 发表期刊 | ASTROPHYSICS AND SPACE SCIENCE
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| 2010-10 | |
| 卷号 | 329期号:1-2页码:293-296 |
| DOI | 10.1007/s10509-009-0229-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 | Employing Eggleton's stellar evolution code with the optically thick wind assumption, we have systematically studied the WD + He star channel of Type Ia supernovae (SNe Ia), in which a carbon-oxygen WD accretes material from a He main-sequence star or a He subgiant to increase its mass to the Chandrasekhar mass. We mapped out the parameter spaces for producing SNe Ia. According to a detailed binary population synthesis approach, we find that the Galactic SN Ia birthrate from this channel is similar to 0.3x10(-3) yr(-1), and that this channel can produce SNe Ia with short delay times (similar to 45-140 Myr). We also find that the surviving companion stars in this channel have a high spatial velocity (> 400 km/s) after the SN explosion, which could be an alternative origin for hypervelocity stars (HVSs), especially for HVSs such as US 708. |
| 项目资助者 | National Natural Science Foundation of China [10821061] ; National Basic Research Program of China [2007CB815406] ; Yunnan Natural Science Foundation [08YJ041001] |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-640X |
| URL | 查看原文 |
| 归档日期 | 2010-10-12 |
| WOS记录号 | WOS:000282823200048 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | SINGLE-DEGENERATE CHANNEL ; SUBDWARF-B-STARS ; STELLAR EVOLUTION ; WHITE-DWARF ; LOW-MASS ; DELAY TIMES ; MODEL ; POPULATIONS ; EXPLOSIONS ; BINARIES |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4493 |
| 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.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, P.R. China 2.Graduate University of the Chinese Academy of Sciences, Beijing, 100049, 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,Han ZW,Wang, B . WD plus He star systems as the progenitors of Type Ia supernovae and their surviving companion stars[J]. ASTROPHYSICS AND SPACE SCIENCE,2010,329(1-2):293-296. |
| APA | Wang B,Han ZW,&Wang, B .(2010).WD plus He star systems as the progenitors of Type Ia supernovae and their surviving companion stars.ASTROPHYSICS AND SPACE SCIENCE,329(1-2),293-296. |
| MLA | Wang B,et al."WD plus He star systems as the progenitors of Type Ia supernovae and their surviving companion stars".ASTROPHYSICS AND SPACE SCIENCE 329.1-2(2010):293-296. |
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| WD + He star systems（315KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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