Evolving neutron star plus helium star systems to intermediate-mass binary pulsars | |
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 |
2019-11-01 | |
卷号 | 490期号:1页码:752-757 |
关键词 | binaries: close stars: evolution supernovae: general white dwarfs |
ISSN号 | 0035-8711 |
DOI | 10.1093/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 |
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关键词 | WHITE-DWARF COMPANIONS ; MILLISECOND PULSARS ; EVOLUTION ; PROGENITORS |
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] |
内容类型 | 期刊论文 |
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 |
通讯作者 | Liu DD(刘栋栋); Wang B(王博) |
作者单位 | 1.University of Chinese Academy of Sciences, Beijing 100049, 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.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, 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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