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The single-degenerate model for the progenitors of accretion-induced collapse events

文献类型：期刊论文

作者Wang B(王博)1,2,3,4
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2018-11-01
卷号481期号:1页码:439-446
ISSN号0035-8711
关键词stars: evolution supernovae: general white dwarfs binaries: close
DOI10.1093/mnras/sty2278
通讯作者Wang, Bo(wangbo@ynao.ac.cn)
产权排序第1完成单位
文献子类Article
英文摘要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.
学科主题天文学 ; 天体物理学 ; 恒星与银河系
URL标识查看原文
WOS关键词SUBDWARF HD 49798 ; MILLISECOND RADIO PULSARS ; IA SUPERNOVA PROGENITORS ; RAY PULSATING COMPANION ; WHITE-DWARF COMPANIONS ; NEUTRON-STARS ; CORONAE-BOREALIS ; BINARY-SYSTEMS ; WIND EVOLUTION ; ONEMG CORES
资助项目National 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]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000449651400032
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences ; Yunnan Province
源URL[http://ir.ynao.ac.cn/handle/114a53/18405]  
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Wang B(王博)
作者单位1.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
2.Yunnan Observatories, 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
推荐引用方式
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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来源：云南天文台

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