Formation of millisecond pulsar-helium star binaries
文献类型：期刊论文
| 作者 | Deng ZL(邓竺龄)1,2,3; Li, Xiang-Dong2,3; Shao, Yong2,3; Mao, Ying-Han2,3; Jiang, Long4 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2025-11-26 |
| 卷号 | 704 |
| 关键词 | binaries: general stars: neutron |
| ISSN号 | 0004-6361 |
| DOI | 10.1051/0004-6361/202555872 |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | Context. PSR J1928+1815, the first recycled pulsar-helium (He) star binary discovered by the Five-hundred-meter Aperture Spherical radio Telescope, consists of a 10.55 ms pulsar and a companion star with mass 1 - 1.6 M-circle dot in a 0.15-day orbit. Theoretical studies suggest that this system originated from a neutron star (NS) intermediate-mass or high-mass X-ray binary that underwent common envelope (CE) evolution, leading to the successful ejection of the giant envelope. The traditional view is that hypercritical accretion during the CE phase may have recycled the NS. However, the specific mechanism responsible for accelerating its spin period remains uncertain due to the complex processes involved in CE evolution. Aims. In this study, we investigate the influence of Roche lobe overflow (RLO) accretion that takes place prior to the CE phase on the spin evolution of NSs. Our primary objective is to clarify how this process affects the spin characteristics of pulsars. Methods. We utilized the stellar evolution code MESA and the binary population synthesis code BSE to model the formation and evolution of NS-He star binaries. We calculated the distributions of the orbital period, He star mass, NS spin period, and magnetic field for NS + He star systems in the Galaxy. Results. Our results indicate that RLO accretion preceding the CE phase could spin up NSs to millisecond periods through super-Eddington accretion. Considering a range of CE efficiencies alpha(CE) from 0.3 to 3, we estimate the birthrate (total number) of NS + He star systems in our Galaxy to be 9.0 x 10(-5) yr(-1) (626 systems) to 1.9 x 10(-4) yr(-1) (2684 systems). |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE |
| WOS关键词 | ACCRETION-INDUCED COLLAPSE ; X-RAY SOURCE ; COMMON-ENVELOPE EVOLUTION ; SUPER-EDDINGTON ACCRETION ; HOYLE-LYTTLETON ACCRETION ; WHITE-DWARF COMPANIONS ; DOUBLE NEUTRON-STARS ; BLACK-HOLE ; POPULATION SYNTHESIS ; MASS-TRANSFER |
| 资助项目 | N/A |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001626582800006 |
| 出版者 | EDP SCIENCES S A |
| 资助机构 | [12041301 and 12121003] ; [2021YFA0718500] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28766]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 通讯作者 | Li, Xiang-Dong |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 2.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, China; 3.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210023, China; 4.School of Science, Qingdao University of Technology, Qingdao 266525, China |
| 推荐引用方式 GB/T 7714 | Deng ZL,Li, Xiang-Dong,Shao, Yong,et al. Formation of millisecond pulsar-helium star binaries[J]. ASTRONOMY & ASTROPHYSICS,2025,704. |
| APA | 邓竺龄,Li, Xiang-Dong,Shao, Yong,Mao, Ying-Han,&Jiang, Long.(2025).Formation of millisecond pulsar-helium star binaries.ASTRONOMY & ASTROPHYSICS,704. |
| MLA | 邓竺龄,et al."Formation of millisecond pulsar-helium star binaries".ASTRONOMY & ASTROPHYSICS 704(2025). |
入库方式： OAI收割
来源：云南天文台
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