Why Are Peculiar Type Ia Supernovae More Likely to Show the Signature of a Single-degenerate Model?
文献类型:期刊论文
作者 | Meng XC(孟祥存)1,2,3; Han ZW(韩占文)1,2,3 |
刊名 | ASTROPHYSICAL JOURNAL LETTERS |
出版日期 | 2018-03-10 |
卷号 | 855期号:2 |
ISSN号 | 2041-8205 |
关键词 | Ism: Supernova Remnants Supernovae: General White Dwarfs |
DOI | 10.3847/2041-8213/aab159 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Although type Ia supernovae (SNe Ia) are very useful in many astrophysical fields, their exact progenitor nature is still unclear. A basic method to distinguish the different progenitor models is to search the signal from the single-degenerate (SD) model, e.g., the signal for the existence of a nondegenerate companion before or after supernova explosion. Observationally, some SNe Ia show such signals, while the others do not. Here, we propose a universal model to explain these observations based on the spin-up/spin-down model, in which a white dwarf (WD) will experience a spin-down phase before supernova explosion, and the spin-down timescale is determined by its initial mass, i.e., the more massive the initial WD, the shorter the spin-down timescale and then the more likely the SN Ia is to show the SD signature. Therefore, our model predicts that the SNe Ia from hybrid carbon-oxygen-neon WDs are more likely to show the SD signature observationally, as some peculiar SNe Ia showed. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星物理学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | PROGENITOR SYSTEM ; COMPANION STAR ; WHITE-DWARFS ; EVOLUTION ; EXPLOSION ; GIANT |
资助项目 | NSFC[11473063] ; NSFC[11522327] ; NSFC[11390374] ; NSFC[11521303] ; NSFC11733008] ; Yunnan Foundation[11733008] ; Yunnan Foundation[2015HB096] ; CAS light of West China Program ; CAS[KJZD-EW-M06-01] ; Science and Technology Innovation Talent Programme of the Yunnan Province[2013HA005] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000427064600004 |
资助机构 | NSFC[11473063, 11522327, 11390374, 11521303, 11733008] ; Yunnan Foundation[11733008, 2015HB096] ; CAS light of West China Program ; CAS[KJZD-EW-M06-01] ; Science and Technology Innovation Talent Programme of the Yunnan Province[2013HA005] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/12143] |
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 |
通讯作者 | Meng XC(孟祥存) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, People's Republic of China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650216 Kunming, People's Republic of China 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China |
推荐引用方式 GB/T 7714 | Meng XC,Han ZW. Why Are Peculiar Type Ia Supernovae More Likely to Show the Signature of a Single-degenerate Model?[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,855(2). |
APA | Meng XC,&Han ZW.(2018).Why Are Peculiar Type Ia Supernovae More Likely to Show the Signature of a Single-degenerate Model?.ASTROPHYSICAL JOURNAL LETTERS,855(2). |
MLA | Meng XC,et al."Why Are Peculiar Type Ia Supernovae More Likely to Show the Signature of a Single-degenerate Model?".ASTROPHYSICAL JOURNAL LETTERS 855.2(2018). |
入库方式: OAI收割
来源:云南天文台
其他版本
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。