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The single-degenerate model for the progenitors of accretion-induced collapse events
Wang B(王博)1,2,3,4
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2018-11-01
Volume481Issue:1Pages:439-446
DOI10.1093/mnras/sty2278
Contribution Rank第1完成单位
Indexed BySCI
Keywordstars: evolution supernovae: general white dwarfs binaries: close
Abstract

It has been suggested that the accretion-induced collapse (AIC) of an oxygen-neon white dwarf (ONe WD) to a neutron star is a theoretically predicted outcome in stellar evolution, likely relating to the formation of some neutron star systems. However, the progenitor models of AIC events are still not well studied, and recent studies indicated that CO WD+He star systems may also contribute to the formation of neutron star systems through AIC process when off-centre carbon ignition happens on the surface of the CO WD. In this work, I studied the single-degenerate (SD) model of AIC events in a systematicway, including the contribution of the CO WD+He star channel and the ONe WD+MS/RG/He star channels. First, I gave the initial parameter space of these SD channels for producing AIC events in the orbital period-secondary mass plane based on detailed binary evolution computations. Then, according to a binary population synthesis approach, I gave the rates and delay times of AIC events for these SD channels based on their initial parameter space. I found that the rates of AIC events in our Galaxy are in the range of similar to(0.3-0.9) x 10(-3) yr(-1), and that their delay times are >30 Myr. I also found that the ONe WD+He star channel is the main way to produce AIC events, and that the COWD+He star channel cannot be ignored when studying the progenitors of AIC events.

Funding ProjectNational Natural Science Foundation of China[11873085] ; National Natural Science Foundation of China[11673059] ; National Natural Science Foundation of China[11390374] ; National Natural Science Foundation of China[11521303] ; Chinese Academy of Sciences[QYZDB-SSW-SYS001] ; Chinese Academy of Sciences[KJZD-EW-M06-01] ; Yunnan Province[2017HC018] ; Yunnan Province[2018FB005]
Funding OrganizationNational Natural Science Foundation of China[11873085, 11673059, 11390374, 11521303] ; Chinese Academy of Sciences[QYZDB-SSW-SYS001, KJZD-EW-M06-01] ; Yunnan Province[2017HC018, 2018FB005]
Language英语
Subject Area天文学 ; 天体物理学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000449651400032
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSUBDWARF HD 49798 ; MILLISECOND RADIO PULSARS ; IA SUPERNOVA PROGENITORS ; RAY PULSATING COMPANION ; WHITE-DWARF COMPANIONS ; NEUTRON-STARS ; CORONAE-BOREALIS ; BINARY-SYSTEMS ; WIND EVOLUTION ; ONEMG CORES
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/18406
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 AuthorWang B(王博)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang B. The single-degenerate model for the progenitors of accretion-induced collapse events[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,481(1):439-446.
APA Wang B.(2018).The single-degenerate model for the progenitors of accretion-induced collapse events.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,481(1),439-446.
MLA Wang B."The single-degenerate model for the progenitors of accretion-induced collapse events".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 481.1(2018):439-446.
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