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Why Are Peculiar Type Ia Supernovae More Likely to Show the Signature of a Single-degenerate Model?
Meng XC(孟祥存)1,2,3; Han ZW(韩占文)1,2,3
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2018-03-10
Volume855Issue:2
DOI10.3847/2041-8213/aab159
Contribution Rank第1完成单位
Indexed BySCI
KeywordIsm: Supernova Remnants Supernovae: General White Dwarfs
Abstract

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.

Funding ProjectNSFC[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]
Funding OrganizationNSFC[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]
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS IDWOS:000427064600004
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordPROGENITOR SYSTEM ; COMPANION STAR ; WHITE-DWARFS ; EVOLUTION ; EXPLOSION ; GIANT
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12143
Collection大样本恒星演化研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorMeng XC(孟祥存)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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).
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