The Helium Star Donor Channel for the Progenitors of Type Ia Supernovae and their Surviving Companion Stars
文献类型：会议论文
| 作者 | Wang B(王博) ; Han ZW(韩占文)
|
| 出版日期 | 2010 |
| 会议名称 | International Conference on Binaries: In Celebration of Ron Webbink's 65th Birthday |
| 会议日期 | 2010-06-22 |
| 会议地点 | Mykonos, GREECE |
| 关键词 | binaries: close stars: evolution supernovae: general white dwarfs |
| 卷号 | 1314 |
| 页码 | 244-249 |
| 通讯作者 | Wang, B (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | The nature of type la supernovae (SNe Ia) is still unclear. Employing Eggleton's stellar evolution code with the optically thick wind assumption, we systematically studied the He star donor channel of SNe La, in which a carbon-oxygen white dwarf accretes material from a He main-sequence star or a He subgiant to increase its mass to the Chandrasekhar mass. We mapped out the initial parameters for producing SNe la in the orbital period secondary mass plane for various WD masses from this channel. According to a detailed binary population synthesis approach, we find that this channel can produce SNe Ia with short delay times (similar to 100 Myr) implied by recent observations. We obtained many properties of the surviving companions of this channel after SN explosion, which can be verified by future observations. We also find that the surviving companions from the SN explosion scenario have a high spatial velocity (>400 km/s), which could be an alternative origin for hypervelocity stars (HVSs), especially for HVSs such as US 708. |
| 收录类别 | CPCI |
| 产权排序 | 第一完成单位 |
| 会议录 | AIP Conference Proceedings - INTERNATIONAL CONFERENCE ON BINARIES: IN CELEBRATION OF RON WEBBINK'S 65TH BIRTHDAY
 |
| 会议录出版者 | AMER INST PHYSICS |
| 学科主题 | Astronomy & Astrophysics |
| 会议录出版地 | 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA |
| 语种 | 英语 |
| ISSN号 | 0094-243X |
| ISBN号 | 978-0-7354-0869-2 |
| WOS记录号 | WOS:000287171500048 |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/249]  |
| 专题 | 云南天文台_大样本恒星演化研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang B,Han ZW. The Helium Star Donor Channel for the Progenitors of Type Ia Supernovae and their Surviving Companion Stars[C]. 见:International Conference on Binaries: In Celebration of Ron Webbink's 65th Birthday. Mykonos, GREECE. 2010-06-22. |
入库方式： OAI收割
来源：云南天文台
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