中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Evolving neutron star plus helium star systems to intermediate-mass binary pulsars

文献类型:期刊论文

作者Tang WS(唐文师)1,2,3,4; Liu DD(刘栋栋)1,2,3,4; Wang B(王博)1,2,3,4
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2019-11-01
卷号490期号:1页码:752-757
ISSN号0035-8711
关键词binaries: close stars: evolution supernovae: general white dwarfs
DOI10.1093/mnras/stz2619
产权排序第1完成单位
文献子类Article
英文摘要

Intermediate-mass binary pulsars (IMBPs) are composed of neutron stars (NSs) and CO/ONe white dwarfs (WDs). It is generally suggested that IMBPs evolve from intermediate-mass X-ray binaries (IMXBs). However, this scenario is difficult to explain the formation of IMBPs with orbital periods (P-orb) less than 3 d. It has recently been proposed that a system consisting of an NS and a helium (He) star can form IMBPs with P-orb less than 3 d (known as the NS+He star scenario), but previous works can only cover a few observed sources with short orbital periods. We aim to investigate the NS+He star scenario by adopting different descriptions of the Eddington accretion rate ((M) over dot(Edd)) for NSs and different NS masses (M-NS) varying from 1.10 to 1.80 M-circle dot. Our results can cover most of the observed IMBPs with short orbital periods and almost half of the observed IMBPs with long orbital periods. We found that (M) over dot(Edd) proportional to M-NS(-1/3) could match the observations better than a specific value for all NSs. We also found that the final spin periods of NSs slightly decrease with the initial M-NS. The observed parameters of PSR J0621+1002, which is one of the well-observed IMBPs whose pulsar mass has been precisely measured, can be reproduced by this work.

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WHITE-DWARF COMPANIONS ; MILLISECOND PULSARS ; EVOLUTION ; PROGENITORS
资助项目National Natural Science Foundation of China[11873085] ; National Natural Science Foundation of China[11673059] ; National Natural Science Foundation of China[11521303] ; Chinese Academy of Sciences[QYZDB-SSWSYS001] ; Chinese Academy of Sciences[KJZD-EW-M06-01] ; Chinese Academy of Sciences[Y9XB016001] ; 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:000496922300056
资助机构National Natural Science Foundation of China[11873085, 11673059, 11521303] ; Chinese Academy of Sciences[QYZDB-SSWSYS001, KJZD-EW-M06-01, Y9XB016001] ; Yunnan Province[2017HC018, 2018FB005]
源URL[http://ir.ynao.ac.cn/handle/114a53/22286]  
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Liu DD(刘栋栋); Wang B(王博)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
推荐引用方式
GB/T 7714
Tang WS,Liu DD,Wang B. Evolving neutron star plus helium star systems to intermediate-mass binary pulsars[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,490(1):752-757.
APA Tang WS,Liu DD,&Wang B.(2019).Evolving neutron star plus helium star systems to intermediate-mass binary pulsars.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,490(1),752-757.
MLA Tang WS,et al."Evolving neutron star plus helium star systems to intermediate-mass binary pulsars".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 490.1(2019):752-757.

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来源:云南天文台

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