Formation of PSR J1012+5307 with an Extremely Low-mass White Dwarf: Testing Magnetic Braking Models
文献类型：期刊论文
| 作者 | Wei, Na2; Xu, Kun2; Gao, Zhi-Fu1 ; Jiang, Long2,3; Chen, Wen-Cong2,3
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 962期号:1页码:54 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad1a14 |
| 产权排序 | 2 |
| 英文摘要 | PSR J1012+5307 is a millisecond pulsar with an extremely low-mass white dwarf (WD) companion in an orbit of 14.5 hr. Magnetic braking (MB) plays an important role in influencing the orbital evolution of binary systems with a low-mass (less than or similar to 1-2 M circle dot) donor star. At present, there exist several different MB descriptions. In this paper, we investigate the formation of PSR J1012+5307 as a probe to test plausible MB models. Employing a detailed stellar evolution model with the MESA code, we find that the convection- and rotation-boosted MB and "Intermediate" MB models can reproduce the WD mass, WD radius, WD surface gravity, neutron star mass, and orbital period observed in PSR J1012+5307. However, our simulated WD has a higher effective temperature than the observations. Three other MB mechanisms, including the standard MB model, are too weak to account for the observed orbital period in the Hubble time. A long cooling timescale caused by H-shell flashes of the WD may alleviate the discrepancy between the simulated effective temperature and the observed value. |
| WOS关键词 | X-RAY BINARIES ; MILLISECOND PULSARS ; NEUTRON-STAR ; CONVECTIVE BOUNDARIES ; STELLAR EVOLUTION ; ORBITAL PERIOD ; ROTATION ; MODULES ; DEPENDENCE ; SUN |
| 资助项目 | National Natural Science Foundation of China ; National Key Research and Development Program of China[2022YFC2205202] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-1] ; Natural Science Foundation[ZR2021MA013] ; [12273014] ; [12373044] ; [12203051] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001157738900001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5781]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Chen, Wen-Cong |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Qingdao Univ Technol, Sch Sci, Qingdao 266525, Peoples R China 3.Shangqiu Normal Univ, Sch Phys & Elect Informat, Shangqiu 476000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Na,Xu, Kun,Gao, Zhi-Fu,et al. Formation of PSR J1012+5307 with an Extremely Low-mass White Dwarf: Testing Magnetic Braking Models[J]. ASTROPHYSICAL JOURNAL,2024,962(1):54. |
| APA | Wei, Na,Xu, Kun,Gao, Zhi-Fu,Jiang, Long,&Chen, Wen-Cong.(2024).Formation of PSR J1012+5307 with an Extremely Low-mass White Dwarf: Testing Magnetic Braking Models.ASTROPHYSICAL JOURNAL,962(1),54. |
| MLA | Wei, Na,et al."Formation of PSR J1012+5307 with an Extremely Low-mass White Dwarf: Testing Magnetic Braking Models".ASTROPHYSICAL JOURNAL 962.1(2024):54. |
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