Subdwarf B stars as possible surviving companions in Type Ia supernova remnants
文献类型:期刊论文
作者 | Meng XC(孟祥存)1,2,3; Li J(李蛟)1,2,4 |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
出版日期 | 2019-02-01 |
卷号 | 482期号:4页码:5651-5665 |
ISSN号 | 0035-8711 |
关键词 | supernovae: general white dwarfs ISM: supernova remnants |
DOI | 10.1093/mnras/sty3092 |
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 so important in many astrophysical fields, a debate on their progenitor model is still endless. Searching the surviving companion in a supernova remnant (SNR) may distinguish different progenitor models, since a companion still exists in the remnant for the single-degenerate (SD) model, but does not for the double-degenerate (DD) model. However, some recent surveys do not discover the surviving companions in the remnant of SN 1006 and Kepler's supernova, which seems to disfavour the SD model. Such a result could be derived from an incorrect survey target. Here, based on the common-envelope wind SD model for SNe Ia, in which the initial binary system consists of a white dwarf (WD) and a main-sequence (MS) star, we found that the companion at the moment of supernova explosion may be an MS, red-giant (RG), or subdwarf B (sdB) star if a spin-down time-scale of less than 10(7) yr is assumed. We show the properties of the companions at the moment of supernova explosion, which are key clues to search the surviving companions in SNRs. Here, we suggest that the sdB star may be the surviving companion in some SNRs, even if the progenitor systems are the WD + MS systems. The SNe Ia with the sdB companions may contribute to all SNe Ia as much as 22 percent. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
WOS关键词 | ASYMPTOTIC-GIANT-BRANCH ; WHITE-DWARFS ; PROGENITOR SYSTEM ; COMMON-ENVELOPE ; SN-1006 REMNANT ; PROPER MOTIONS ; MAIN-SEQUENCE ; RED GIANT ; TYCHO-G ; EVOLUTION |
资助项目 | NSFC[11473063] ; NSFC[11522327] ; NSFC[11390374] ; NSFC[11521303] ; NSFC[11733008] ; Yunnan Foundation[2015HB096] ; Yunnan Foundation[2017HC018] ; CAS Light of West China Program ; CAS[KJZD-EW-M06-01] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000462327300104 |
资助机构 | NSFC[11473063, 11522327, 11390374, 11521303, 11733008] ; Yunnan Foundation[2015HB096, 2017HC018] ; CAS Light of West China Program ; CAS[KJZD-EW-M06-01] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/19677] |
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); Li J(李蛟) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, P.R. China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650216 Kunming, P.R. China 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, P.R. China 4.University of Chinese Academy of Sciences, Beijing 100049, China |
推荐引用方式 GB/T 7714 | Meng XC,Li J. Subdwarf B stars as possible surviving companions in Type Ia supernova remnants[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,482(4):5651-5665. |
APA | Meng XC,&Li J.(2019).Subdwarf B stars as possible surviving companions in Type Ia supernova remnants.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,482(4),5651-5665. |
MLA | Meng XC,et al."Subdwarf B stars as possible surviving companions in Type Ia supernova remnants".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 482.4(2019):5651-5665. |
入库方式: OAI收割
来源:云南天文台
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