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On the Formation of PSR J1640+2224: A Neutron Star Born Massive?

文献类型：期刊论文

作者Deng, Zhu-Ling1,2,3,4,5; Gao, Zhi-Fu3,4,5; Li, Xiang-Dong1,2; Shao, Yong1,2
刊名ASTROPHYSICAL JOURNAL
出版日期2020-03-20
卷号892期号:1页码:4
关键词Neutron stars Compact binary stars Binary pulsars
ISSN号0004-637X
DOI10.3847/1538-4357/ab76c4
产权排序1
英文摘要PSR J1640+2224 is a binary millisecond pulsar (BMSP) with a white dwarf (WD) companion. Recent observations indicate that the WD is very likely to be a similar to 0.7 M CO WD. Thus, the BMSP should have evolved from an intermediate-mass X-ray binary (IMXB). However, previous investigations on IMXB evolution predict that the orbital periods of the resultant BMSPs are generally < 40 days, in contrast with the 175 day orbital period of PSR J1640+2224. In this paper, we explore the influence of the mass of the neutron star (NS) and the chemical compositions of the companion star on the formation of BMSPs. Our results show that the final orbital period becomes longer with increasing NS mass, and the WD mass becomes larger with decreasing metallicity. In particular, to reproduce the properties of PSR J1640+2224, the NS was likely born massive (>2.0 M).
WOS关键词WHITE-DWARF COMPANIONS ; CLOSE BINARY-SYSTEMS ; MILLISECOND PULSARS ; EVOLUTION ; PERIOD ; ROTATION
资助项目National Key Research and Development Program of China[2016YFA0400803] ; Natural Science Foundation of China[11773015] ; Natural Science Foundation of China[U1838201] ; Natural Science Foundation of China - CAS[11773015] ; Natural Science Foundation of China - CAS[U1838201]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000521418000001
出版者IOP PUBLISHING LTD
资助机构National Key Research and Development Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China - CAS
源URL[http://ir.xao.ac.cn/handle/45760611-7/3446]  
专题脉冲星研究团组
通讯作者Gao, Zhi-Fu
作者单位1.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210023, Peoples R China
2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China
5.Chinese Acad Sci, Xinjiang Astron Observ, 150,Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
推荐引用方式
GB/T 7714		 Deng, Zhu-Ling,Gao, Zhi-Fu,Li, Xiang-Dong,et al. On the Formation of PSR J1640+2224: A Neutron Star Born Massive?[J]. ASTROPHYSICAL JOURNAL,2020,892(1):4.
APA Deng, Zhu-Ling,Gao, Zhi-Fu,Li, Xiang-Dong,&Shao, Yong.(2020).On the Formation of PSR J1640+2224: A Neutron Star Born Massive?.ASTROPHYSICAL JOURNAL,892(1),4.
MLA Deng, Zhu-Ling,et al."On the Formation of PSR J1640+2224: A Neutron Star Born Massive?".ASTROPHYSICAL JOURNAL 892.1(2020):4.

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